Publications In Alphabetical Order by Year


2022Anderson, M. K., Whitted, L., Mason, T. B., Pang, R. D., Tackett, A. P., & Leventhal, A. M.. Characterizing Different-Flavored E-Cigarette Solutions From User-Reported Sensory Attributes and Appeal. Experimental and Clinical Psychopharmacology.2022. Advance online publication.
2022Harlow AF, Stokes AC, Brooks DR, Benjamin EJ, Barrington-Trimis JL, Ross CS. E-Cigarette Use and Combustible Cigarette Smoking Initiation among Youth: Accounting for Time-Varying Exposure and Time-Dependent Confounding. Epidemiology. 2022 Mar 29. doi: 10.1097/EDE.0000000000001491. Epub ahead of print. PMID: 35394965.
2022Islam T, Braymiller J, Eckel SP, et alSecondhand nicotine vaping at home and respiratory symptoms in young adultsThorax Published Online First: 10 January 2022. doi: 10.1136/thoraxjnl-2021-217041
2022Kechter A, Simpson KA, Ceasar RC, Schiff SJ, Yamaguchi N, Bluthenthal RN, Smiley SL, Barrington-Trimis JL. Trajectories of Nicotine Use Leading to Dual and Cyclical Tobacco Product Use in Young Adults. Nicotine Tob Res. 2022 Jun 15;24(7):986-993. doi: 10.1093/ntr/ntab249. PMID: 34850184; PMCID: PMC9199940
2022Kong G, Chaffee BW, Wu R, Krishnan-Sarin S, Liu F, Leventhal AM, McConnell R, Barrington-Trimis J. Ecigarette device type and combustible tobacco use: Results from a pooled analysis of 10,482 youth. Drug Alcohol Depend. 2022 Mar 1;232:109279. doi: 10.1016/j.drugalcdep.2022.109279. Epub 2022 Jan 11. PMID: 35063841; PMCID: PMC8885961.
2022Majmundar A, Chu M, Perez C, Hoang Y, Yuan J, Unger JB, Allem JP. Tobacco and cannabis use advertisements targeting adolescents and young adults on Snapchat in 2019. Prev Med Reports. 2022; 26(101758).
2022Miech R, Leventhal AM, O’Malley PM, Johnston LD, Barrington-Trimis JL. Failed Attempts to Quit Combustible Cigarettes and e-Cigarettes Among US Adolescents. JAMA. 2022;327(12):1179–1181. doi:10.1001/jama.2022.1692
2022Tackett AP, Barrington-Trimis JL, Leventhal AM. ‘Flavour ban approved’: new marketing strategies from tobacco-free nicotine pouch maker Zyn. Tob Control 2022;0:1–2. doi:10.1136/tobaccocontrol-2021-057222
2022Unger JB, Barker JO, Cruz TB, Leventhal AM, Pentz MA. .Lucy—Novel Flavored Nicotine Gum, Lozenges, and Pouches: Are They Misleading Consumers?, Substance Use & Misuse, 2022. DOI: 10.1080/10826084.2022.2076881
2022Vassey J, Valente T, Barker J, et al.E-cigarette brands and social media influencers on Instagram: a social network analysis.Tobacco Control Published Online First: 07 February 2022. doi: 10.1136/tobaccocontrol-2021-057053
2022Vogel EA, Barrington-Trimis JL, Kechter A, Tackett AP, Liu F, Sussman S, Lerman C, Unger JB, Hughes Halbert C, Chaffee BW, Leventhal AM. Differences in Young Adults’ Perceptions of and Willingness to Use Nicotine Pouches by Tobacco Use Status. International Journal of Environmental Research and Public Health. 2022; 19(5):2685.
2022Wipfli HL, Kim M, Vassey J, Stanton C. Vaping and anime: a growing area of concern. Tob Control 2022;0:1–3. doi:10.1136/tobaccocontrol-2021-057195
2022Yamaguchi N, Kechter A, Schiff SJ, Braymiller JL, Ceasar RC, Simpson KA, Bluthenthal RN, Barrington-Trimis JL. Critical Challenges and Creative Solutions for Quantifying Nicotine Vaping: Qualitative Reports From Young Adults. Nicotine Tob Res. 2022 Feb 14;24(3):416-420. doi: 10.1093/ntr/ntab074. PMID: 33846743; PMCID: PMC8842405.


2021Allem J, Dormanesh A, Majmundar A, Rivera V, Chu M, Unger J, Cruz T. Leading Topics in Twitter Discourse on JUUL and Puff Bar Products: Content Analysis. J Med Internet Res 2021;23(7):e26510 URL: DOI: 10.2196/26510
2021Allem J, Dormanesh A, Majmundar A, Unger J, Kirkpatrick M, Choube A, Aithal A, Ferrara E, Boley Cruz T
Topics of Nicotine-Related Discussions on Twitter: Infoveillance Study. J Med Internet Res 2021;23(6):e25579
URL: DOI: 10.2196/25579
2021Barker JO, Vassey J, Chen-Sankey JC, Allem JP, Cruz TB, Unger JB. Categorizing IQOS-Related Twitter Discussions. Int J Environ Res Public Health.
2021 Apr 30;18(9):4836. doi:10.3390/ijerph18094836. PMID: 33946546.
2021Berg, C.J., Duan, X., Getachew, B., Pulvers, K., Crawford, N., Sussman, S., Ma, Y., Jones-Harrell, C.,
Henriksen, L. (2021). Young Adult E-cigarette Use and Retail Exposure in 6 US Metropolitan Areas. Tob Regul Sci. 7(1). 59-75.
2021Chaffee BW, Barrington-Trimis J, Liu F, Wu R, McConnell R, Krishnan-Sarin S, Leventhal AM, Kong G. E-cigarette use and adverse respiratory symptoms among adolescents and Young adults in the United States. Prev Med. 2021 Aug 18:106766. doi: 10.1016/j.ypmed.2021.106766. Epub ahead of print. PMID: 34418439.
2021Chen-Sankey JC, Kechter A, Barrington-Trimis J, McConnell R, Krueger EA, Cruz TB, Unger JB, Chaffee BW, Leventhal A. Effect of a hypothetical modified risk tobacco product claim on heated tobacco product use intention and perceptions in young adults. Tob Control. 2021 May 31:tobaccocontrol-2021-056479. doi: 10.1136/tobaccocontrol-2021-056479. Epub ahead of print. PMID: 34059552.
2021Cho, J., Bello, M. S., Christie, N. C., Monterosso, J. R., & Leventhal, A. M. (2021). Adolescent emotional disorder symptoms and transdiagnostic vulnerabilities as predictors of young adult substance use during the COVID-19 pandemic: Mediation by substance-related coping behaviors. Cognitive Behaviour Therapy, 1-19.
2021Chu KH, Matheny SJ, Sidani JE, Allem JP, Unger JB, Cruz TB. Instagram's #JUUL: who's posting what. Transl Behav Med. 2021 Feb 11;11(1):257-261. doi: 10.1093/tbm/ibz169. PMID: 31912873; PMCID: PMC7877305.
2021Cwalina SN, Braymiller JL, Leventhal AM, Unger JB, McConnell R, Barrington-Trimis JL. Prevalence of Young Adult Vaping, Substance Vaped, and Purchase Location Across Five Categories of Vaping Devices, Nicotine & Tobacco Research, Volume 23, Issue 5, May 2021, Pages 829–835,
2021Cwalina SN, Ihenacho U, Barker J, et al. Advancing racial equity and social justice for Black communities in US tobacco control policyTobacco Control Published Online First: 15 September 2021. doi: 10.1136/tobaccocontrol-2021-056704
2021Cwalina SN, McConnell R, Benowitz NL, Barrington-Trimis JL. Tobacco-free Nicotine - New Name, Same Scheme? N Engl J Med. 2021 Dec 23;385(26):2406-2408. doi: 10.1056/NEJMp2111159. Epub 2021 Dec 18. PMID: 34919358.
2021Cwalina SN, Pacek LR, Barrington-Trimis JL, Tackett AP, Pentz MA. Cross-Sectional Associations of Multiple Tobacco Product Use with Depressive and Anxiety Symptoms among Young Adult E-Cigarette Users. Subst Use Misuse. 2021 Jul 29:1-8. doi: 10.1080/10826084.2021.1954026. Epub ahead of print. PMID: 34320919.
2021Escobedo P, Rosenthal EL, Saucier CJ, Unger JB, Cruz TB, Kirkpatrick M, Allem JP. Electronic Cigarette Product Placement and Imagery in Popular Music Videos. Nicotine Tob Res. 2021 Aug 4;23(8):1367-1372. doi: 10.1093/ntr/ntaa273. PMID: 33367917.
2021Fu R, Shi J, Chaiton M, Leventhal AM, Unger JB, Barrington-Trimis JL. A Machine Learning Approach to Identify Predictors of Frequent Vaping and Vulnerable Californian Youth Subgroups. Nicotine Tob Res. 2021 Dec 9:ntab257. doi: 10.1093/ntr/ntab257. Epub ahead of print. PMID: 34888698.
2021Galimov, A., Leventhal A., Meza, L., Unger, J. B., Huh, J., Baezconde-Garbanati, L., & Sussman, S. Prevalence of disposable pod use and consumer preference for e-cigarette product characteristics among vape shop customers in Southern California: a cross-sectional studyBMJ Open 2021;11:e049604. doi: 10.1136/bmjopen-2021-049604
2021Huh J, Yu S, Galimov A, et alHypothetical flavour ban and intention to vape among vape shop customers: the role of flavour preference and e-cigarette dependenceTobacco Control Published Online First: 10 June 2021. doi: 10.1136/tobaccocontrol-2020-056321.
2021Kechter A, Barrington-Trimis JL, Cho J, Davis JP, Huh J, Black DS, Leventhal AM. Distress tolerance and subsequent substance use throughout high school. Addict Behav. 2021 Sep;120:106983. doi: 10.1016/j.addbeh.2021.106983. Epub 2021 May 8. PMID: 34010760; PMCID: PMC8184616.
2021Kechter A, Cho J, Miech RA, Barrington-Trimis JL, Leventhal AM. Nicotine dependence symptoms in U.S. youth who use JUUL E-cigarettes. Drug Alcohol Depend. 2021 Oct 1;227:108941. doi: 10.1016/j.drugalcdep.2021.108941. Epub 2021 Aug 4. PMID: 34416679; PMCID: PMC8464491
2021Kim S, Mourali A, Allem JP, Unger JB, Cruz TB, Smiley SL. Instagram posts related to Backwoods cigarillo blunts: Content analysis. JMIR Public Health and Surveillance, 2021 Feb 9: 7(2): e22946 DOI: 10.2196/22946
2021 Kirkpatrick MG, Dormanesh A, Rivera V, et al. #FlavorsSaveLives: An analysis of Twitter posts opposing flavored e-cigarette bans. Nicotine & Tobacco Research. 2021;(ntaa276). doi:10.1093/ntr/ntaa276
2021Krueger EA, Bello MS, Unger J, Cruz TB, Barrington-Trimis JL, Braymiller JL, Lanza I, Chen-Sankey JC, Cho J, McConnell R, Leventhal AM. Sociodemographic differences in young adults’ recall of tobacco and cannabis marketing online and in television/film. Preventive Medicine Reports. 2021.(24).
2021Leventhal A, Dai H, Barrington-Trimis J, et al‘Ice’ flavoured e-cigarette use among young adultsTobacco Control Published Online First: 14 June 2021. doi: 10.1136/tobaccocontrol-2020-056416
2021Leventhal AM, Dai D, Barrington-Trimis JL, Tackett AP, Pedersen E, Tran DD. Disposable E-Cigarette Use Prevalence, Correlates, and Associations with Previous Tobacco Product Use in Young Adults, Nicotine & Tobacco Research, 2021;, ntab165,
2021Leventhal AM, Dai H, Higgins ST. Smoking Cessation Prevalence and Inequalities in the United States: 2014–2019, JNCI: Journal of the National Cancer Institute, 2021;, djab208,
2021Leventhal AM, Madden DR, Peraza N, et al. Effect of Exposure to e-Cigarettes With Salt vs Free-Base Nicotine on the Appeal and Sensory Experience of Vaping: A Randomized Clinical Trial. JAMA Netw Open. 2021;4(1):e2032757.doi:10.1001/jamanetworkopen.2020.32757
2021Liautaud MM, Barrington-Trimis JL, Liu F, Stokes A, Krueger EA, McConnell R, Pang RD. E-cigarette, cigarette, and cannabis use patterns as a function of sexual identity in a sample of Southern California young adults. Addict Behav Rep. 2021 Jan 16;13:100338. doi: 10.1016/j.abrep.2021.100338. PMID: 33644294; PMCID: PMC7889792.
2021Lozano, A., Liu, F., Lee, T. K., Prado, G., Schwartz, S. J., Leventhal, A. M., Kelleghan, A. R., Unger, J. B., & Barrington-Trimis, J. L. (2021). Bidirectional associations between e-cigarette use and alcohol use across adolescence. Drug and Alcohol Dependence, 220, 108496.
2021Majmundar A, Allem JP, Cruz TB, Unger JB, Pentz MA. Monitoring Health Effects of Vaping Discussed on Twitter in 2018 and 2019. J Gen Intern Med. 2021 Apr 9. doi: 10.1007/s11606-021-06705-9. Epub ahead of print. PMID: 33835311.
2021Majmundar A, Allem JP, Cruz TB, Unger JB, Pentz MA. Twitter Surveillance at the Intersection of the Triangulum, Nicotine & Tobacco Research, 2021;, ntab085,
2021Majmundar A, Allem JP, Unger JB, Cruz TB. Vaping and COVID-19: Insights for Public Health and Clinical Care from Twitter. Int J Environ Res Public Health. 2021 Oct 26;18(21):11231. doi:10.3390/ijerph182111231. PMID: 34769751; PMCID: PMC8583646.
2021Majmundar A, Unger JB, Cruz TB, Kirkpatrick MG, Allem JP. Exposure to E-Cigarette Product Placement in Music Videos Is Associated With Vaping Among Young Adults. Health Educ Behav. 2021 Apr 6:10901981211003867. doi:
10.1177/10901981211003867. Epub ahead of print. PMID: 33821689.
2021Mason, T. B., & Leventhal, A. M. (2021). Relations among sweet taste preference, body mass index, and use of E-cigarettes for weight control motives in young adults. Eating Behaviors, 101497.
2021Mason TB, Leventhal AM. Weight Status and Effects of Non-Tobacco Flavors on E-Cigarette Product Appeal. Subst Use Misuse. 2021;56(6):848-853. doi: 10.1080/10826084.2021.1899229. Epub 2021 Mar 23. PMID: 33754940.
2021Medel, D., Meza, L., Galimov, A., Steinberg, J.K., Berg, C.J., Baezconde-Garbanati, L., & Sussman, S. (2021). Longitudinal Tracking of Vape Shop Compliance With State Business Regulations Within Southern California Ethnic Neighborhoods During the COVID-19 Pandemic. Eval Health Prof, 44(1), 87-92.
2021Miech RA, Leventhal AM, Johnson LD. Recent, national trends in US adolescent use of menthol and non-menthol cigarettes. Tob Control. 2021 Dec 1:tobaccocontrol-2021-056970. doi: 10.1136/tobaccocontrol-2021-056970. Epub ahead of print. PMID: 34853161.
2021Meza, L., Galimov, A., Huh, J., Baezconde-Garbanati, L., Sussman, S. (2021). Compliance to FDA’s elimination of free tobacco product sampling at vape shops. Addictive Behaviors, 125, 107148.
2021Morean ME, Wackowski OA, Eissenberg T, Delnevo CD, Krishnan-Sarin S. Adolescents and Young Adults Have Difficulty Understanding Nicotine Concentration Labels on Vaping Products Presented as mg/mL and Percent Nicotine. Nicotine Tob Res. 2021 Aug 4;23(8):1389-1397. doi: 10.1093/ntr/ntab007. PMID: 33433626.
2021Peraza N., Bello MS., Schiff SJ., Cho J., Zhang Y., Callahan C., Tackett A., Leventhal AM. Acute Effects of Pod-Style E-cigarettes in Vaping-Naïve Smokers. DAD. 2021. doi: 10.1016/j.drugalcdep.2021.109083
2021Samet JM, Barrington-Trimis J. E-Cigarettes and Harm Reduction: An Artificial Controversy Instead of Evidence and a Well-Framed Decision Context. Am J Public Health. 2021 Sep;111(9):1572-1574. doi: 10.2105/AJPH.2021.306457. Epub 2021 Aug 26. PMID: 34436931; PMCID: PMC8589068.
2021Sargent JD, Stoolmiller M, Dai H, Barrington-Trimis JL, McConnell R, Audrain-McGovern J, Leventhal AM. First e-cigarette flavor and device type used: Associations with vaping persistence, frequency, and dependence in young adults. Nicotine Tob Res. 2021 Aug 30:ntab172. doi: 10.1093/ntr/ntab172. Epub ahead of print. PMID: 34460934.
2021Simpson, K.A., Kechter, A., Schiff, S.J. et al. Characterizing symptoms of e-cigarette dependence: a qualitative study of young adults. BMC Public Health 21, 959 (2021).
2021Villanti AC, LePine SE, West JC, Cruz TB, Stevens EM, Tetreault HJ, Unger JB, Wackowski OA, Mays D. Identifying message content to reduce vaping: Results from online message testing trials in young adult tobacco users. Addict Behav. 2021 Apr;115:106778. doi: 10.1016/j.addbeh.2020.106778. Epub 2020 Dec 11. PMID: 33341530; PMCID: PMC8085990.
2021Wills TA, Leventhal AM, Sargent JD, Pagano I. Concurrent Use of E-cigarettes, Combustible Cigarettes, and Marijuana. Pediatrics Oct 2021, 148 (4) e2021050749; DOI: 10.1542/peds.2021-050749
2021Vassey J, Allem J, Barker J, et alE-cigarette use and promotion by social media influencers during videogame play on TwitchTobacco Control Published Online First: 08 October 2021. doi: 10.1136/tobaccocontrol-2021-056828


2020Barrington-Trimis JL. Reducing the Adverse Public Health Impact of Menthol Cigarettes in Disparate Populations. Nicotine Tob Res. 2020;22(4):456-457. doi:10.1093/ntr/ntaa027
2020Barrington-Trimis JL, Braymiller JL, Unger JB, et al. Trends in the Age of Cigarette Smoking Initiation Among Young Adults in the US From 2002 to 2018. JAMA Network Open. 2020;3(10):e2019022-e2019022.
2020Barrington-Trimis, J. L., Yang, Z., Schiff, S., Unger, J., Cruz, T. B., Urman, R., Cho, J., Samet, J. M., Leventhal, A. M., Berhane, K., & McConnell, R. (2020). E-cigarette Product Characteristics and Subsequent Frequency of Cigarette Smoking. Pediatrics, e20191652.
2020Begay, C., Soto, C., Baezconde-Garbanati, L., Unger, J.B., Barahona, R., Rodriguez, Y.L., & Smiley,  S.L. (2020). Cigarette and e-cigarette retail marketing on and near California Tribal lands. Health Promotion Practice. Special Supplement: Tobacco and Health Equity: Interventions, Research, and Strategies to Address Tobacco Use Among Diverse Populations. Health Promotion Practice. 21(Suppl 1):18S–
2020Berg CJ, Callanan R, Johnson TO, et al. Vape shop and consumer activity during COVID-19
non-essential business closures in the USA. Tob Control 2020;0:1–4. doi:10.1136/tobaccocontrol-2020-056171
2020Berg CJ, Getachew B, Pulvers K, Sussman S, Wagener TL, Meyers C, Park A, Dorvil S, Patterson A, Weber A, Hayes RB, Barker DC, Henriksen L. Vape shop owners'/managers' attitudes about CBD, THC, and marijuana legal markets. Prev Med Rep. 2020 Sep 12;20:101208. doi: 10.1016/j.pmedr.2020.101208. PMID: 32995147; PMCID: PMC7516178.
2020Braymiller JL, Barrington-Trimis JL, Leventhal AM, et al. Assessment of Nicotine and Cannabis Vaping and Respiratory Symptoms in Young Adults. JAMA Netw Open. 2020;3(12):e2030189. doi:10.1001/jamanetworkopen.2020.30189
2020Cho J, Goldenson NI, Kirkpatrick MG, Barrington-Trimis JL, Pang RD, Leventhal AM. Developmental Patterns of Tobacco Product and Cannabis Use Initiation in High School [published online ahead of print, 2020 Jun 13]. Addiction. 2020;10.1111/add.15161. doi:10.1111/add.15161
2020Chu, K.-H., Matheny, S. J., Sidani, J. E., Allem, J.-P., Unger, J. B., & Cruz, T. B. (2020). Instagram’s #JUUL: who’s posting what. Translational Behavioral Medicine, ibz169.
2020Cwalina SN, Braymiller JL, Leventhal AM, Unger JB, McConnell R, Barrington-Trimis JL. Prevalence of Young Adult Vaping, Substance Vaped, and Purchase Location Across 5 Categories of Vaping Devices. Nicotine & Tobacco Research. 2020;(ntaa232). doi:10.1093/ntr/ntaa232
2020Cwalina, S. N., Leventhal, A. M., & Barrington-Trimis, J. L. (2020). E-cigarette flavour enhancers: Flavoured pod attachments compatible with JUUL and other pod-based devices. Tobacco Control, tobaccocontrol-2020-055618.
2020Escobedo, P., Tsai, K.-Y., Majmundar, A., Allem, J.-P., Soto, D. W., Pattarroyo, M., Unger, J. B., & Cruz, T. B. (2020). Do tobacco industry websites target content to specific demographic groups? Drug and Alcohol Dependence, 107852.
2020FDA finalizes enforcement policy on unauthorized flavored cartridge-based e-cigarettes that appeal to children, including fruit and mint
2020Galimov, A., Galstyan, E., Yu, S., Smiley, S. L., Meza, L., Baezconde-Garbanati, Unger, J. B., Sussman, S. (In press). Predictors of Vape Shops Going out of Business in Southern California. Tobacco Regulatory Science, 6(3),187-195.
2020Huh J, Meza L, Galstyan E, et al. Signs and Customer Behaviors at Vape Shops: Multivariate Multilevel Model Analysis. Addictive Behaviors Reports. Published online September 4, 2020:100299. doi:10.1016/j.abrep.2020.100299
2020Huh J, Meza LR, Galstyan E, et al. Association between federal and California state policy violation among vape shops and neighbourhood composition in Southern California. Tob Control. Published online July 1, 2020:tobaccocontrol-2020-055657. doi:10.1136/tobaccocontrol-2020-055657
2020Kechter A, Schiff SJ, Simpson KA, et al. Young adult perspectives on their respiratory health symptoms since vaping. Substance Abuse. Published online December 15, 2020:1-13. doi:10.1080/08897077.2020.1856290
2020Kelleghan, A. R., Leventhal, A. M., Cruz, T. B., Bello, M. S., Liu, F., Unger, J. B., Riehm, K., Cho, J., Kirkpatrick, M. G., McConnell, R. S., & Barrington-Trimis, J. L. (2020). Digital media use and subsequent cannabis and tobacco product use initiation among adolescents. Drug and Alcohol Dependence, 108017.
2020Lanza HI, Barrington-Trimis JL, McConnell R, et al. Trajectories of Nicotine and Cannabis Vaping and Polyuse From Adolescence to Young Adulthood. JAMA Netw Open. 2020;3(10):e2019181. doi:10.1001/jamanetworkopen.2020.19181
2020Leventhal AM, Dai H. Prevalence of Flavored e-Cigarette Use Among Subpopulations of Adults in the United States. JNCI: Journal of the National Cancer Institute. Published online 2020.
2020Lanza HI, Leventhal AM, Cho J, et al. Young adult e-cigarette use: A latent class analysis of device and flavor use, 2018-2019. Drug and Alcohol Dependence. Published online 2020:108258.
2020Leventhal, A.M., Mason, T.B., Cwalina, S.N., Whitted, L., Anderson, M., & Callahan, C.
(2020). Flavor and Nicotine Effects on E-cigarette Appeal in Young Adults: Moderation by
Reason for Vaping. American journal of health behavior, 44(5), 732-743.
2020Leventhal, A. M., Mason, T. B., Kirkpatrick, M. G., Anderson, M. K., & Levine, M. D. (2020). E-cigarette device power moderates the effects of non-tobacco flavors and nicotine on product appeal in young adults. Addictive Behaviors, 107, 106403.
2020Majmundar, A., Allem, J.-P., Cruz, T. B., & Unger, J. B. (2020). Public health concerns and unsubstantiated claims at the intersection of vaping and COVID-19. Nicotine & Tobacco Research, ntaa064.
2020Majmundar A, Le N, Moran MB, Unger JB, Reuter K. Public Response to a Social Media Tobacco Prevention Campaign: Content Analysis. JMIR Public Health Surveill. 2020;6(4):e20649. doi:10.2196/20649
2020Medel, D., Meza, L., Galimov, A., Baezconde-Garbanati, L., Sussman, S. (In press). Notes From the Field: Vape Shop Business Operations Compliance in the Wake of COVID-19. Evaluation & the Health Professions.
2020Pang, R. D., Goldenson, N. I., Kirkpatrick, M., Barrington-Trimis, J., Cho, J., & Leventhal, A. M. (2020). Sex differences in the appeal of flavored e-cigarettes among young adult e-cigarette users. Psychology of Addictive Behaviors, doi:
2020Rebuli ME, Liu F, Urman R, et al. Compliance in controlled e-cigarette studies [published online ahead of print, 2020 Jan 29]. Nicotine Tob Res. 2020;ntaa017. doi:10.1093/ntr/ntaa017
2020Sargent, J. D., Unger, J. B., & Leventhal, A. M. (2020). Recommendations From the USPSTF for Prevention and Cessation of Tobacco Use in Children and Adolescents. JAMA, 323(16), 1563–1564.
2020Schiff, S., Liu, F., Cruz, T. B., Unger, J. B., Cwalina, S., Leventhal, A., McConnell, R., & Barrington-Trimis, J. (2020). E-cigarette and cigarette purchasing among young adults before and after implementation of California’s tobacco 21 policy. Tobacco Control, tobaccocontrol-2019-055417.
2020Smiley SL, Kim S, Mourali A, Allem J-P, Unger JB, Boley Cruz T. Characterizing #Backwoods on Instagram: “The Number One Selling All Natural Cigar”. International Journal of Environmental Research and Public Health. 2020; 17(12):4584.
2020Smiley, S. L., Soto, C., Cruz, T. B., Kintz, N., Rodriguez, Y. L., Sussman, S., & Baezconde-Garbanati, L. (2020). Point-of-sale marketing of little cigars and cigarillos on and near California Tribal lands. Tobacco Control, 29(1), 122.
2020Sussman, S., Galimov, A., & Delnevo, C. D. (2020). Vape-only versus vape-and-smoke shops: Sales to minors in four states. Tobacco Control, tobaccocontrol-2019-055567.
2020Unger, J. B., Rogers, C., Barrington-Trimis, J., Majmundar, A., Sussman, S., Allem, J.-P., Soto, D. W., & Boley Cruz, T. (2020). “I’m using cigarettes to quit JUUL”: An analysis of Twitter posts about JUUL cessation. Addictive Behaviors Reports, 100286.
2020Vogel, E. A., Cho, J., McConnell, R. S., Barrington-Trimis, J. L., & Leventhal, A. M. (2020). Prevalence of Electronic Cigarette Dependence Among Youth and Its Association With Future Use. JAMA Network Open, 3(2), e1921513-e1921513.


2019Allem JP, Majmundar A, Dharmpuri L, Cruz TB, Unger JB. E-liquid-related posts to Twitter in 2018: thematic analysis. Addictive Behaviors Reports. 2019; 10:100196.
2019Allem J, Majmundar A, Dharmapuri L, Unger JB, Cruz TB. Insights on electronic cigarette products from reviews on the Reddit forum. Tobacco Prevention & Cessation. 2019;5(September):29. doi:10.18332/tpc/111533.
2019Allem JP, Uppu SP, Boley Cruz T, Unger JB. Characterizing Swisher Little Cigar–Related Posts on Twitter in 2018: Text Analysis. J Med Internet Res 2019;21(7):e14398 DOI: 10.2196/14398 PMID: 31325291
2019Barrington-Trimis, JL, Bello, MS, Liu, F, Leventhal, AM, Kong, G, Mayer, M, Cruz, TB, Krishnan-Sarin, S, McConnell, R. Ethnic Differences in Patterns of Cigarette and E-Cigarette Use Over Time Among Adolescents. J of Adol Heal. 2019.
2019Barrington-Trimis, J. L., Liu, F., Unger, J. B., Alonzo, T., Cruz, T. B., Urman, R., … McConnell, R. (2019). Evaluating the predictive value of measures of susceptibility to tobacco and alternative tobacco products. Addictive Behaviors, 96, 50–55.

2019Basáñez T, Majmundar A, Cruz TB, Allem JP, Unger JB. “E-cigarettes Are Being Marketed as “Vitamin Delivery” Devices”, American Journal of Public Health 109, no. 2; 2019: pp. 194-196.
2019Basáñez, T., Sussman, S., Clark, J., Unger, JB. Intragroup xenophobic attitudes, ethnic identity, and substance use among Latinx adolescents. Journal of Ethnicity in Substance Abuse. 2019 DOI: 10.1080/15332640.2018.1540954
2019Berry KM, Fetterman JL, Benjamin EJ, et al. Association of Electronic Cigarette Use With Subsequent Initiation of Tobacco Cigarettes in US Youths. JAMA Netw Open. 2019;2(2):e187794. doi:10.1001/jamanetworkopen.2018.7794
2019Blackman, K. C., Smiley, S. L., Kintz, N. M., Rodriguez, Y. L., Bluthenthal, R. N., Chou, C. P., (2019). Retailers' Perceptions of FDA Tobacco Regulation Authority. Tobacco Regulatory Science, 5(3), 291-300.
2019Carroll, D. M., Soto, C., Baezconde-Garbanati, L., Huang, L.-L., Lienemann, B. A., Meissner, H. I., … Cruz, T. B. (2019). Tobacco Industry Marketing Exposure and Commercial Tobacco Product Use Disparities among American Indians and Alaska Natives. Substance Use & Misuse, 1–10.
2019Cho, J., Stone, M. D., & Leventhal, A. M. (2019). Anhedonia as a phenotypic marker of familial transmission of polysubstance use trajectories across midadolescence. Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors, 33(1), 15–25. doi:10.1037/adb0000427

2019Chu KH, Allem J-P, Soto DW, Majmundar A*, Cruz TB, Unger JB. Tobacco Use Behaviors, Attitudes, and Demographic Characteristics of Tobacco Opinion Leaders and Their Followers: Twitter Analysis. J Med Internet Res 2019;21(6):e12676. DOI: 10.2196/12676
2019Chu KH, Allem JP, Unger JB, Cruz TB, Akbarpour M, Kirkpatrick MG. Strategies to find audience segments on Twitter for e-cigarette education campaigns. Addict Behav. 2019;91:222–226. doi:10.1016/j.addbeh.2018.11.015
2019Cwalina SN, Majmundar A, Unger JB, Barrington-Trimis JL, PentzMA, 2019. Adolescent menthol cigarette use and risk of nicotine dependence: Findings from thenational Population Assessment on Tobacco and Health (PATH) Study,Drug and AlcoholDependence, doi:
2019Cruz, T. B., Rose, S. W., Lienemann, B. A., Byron, M. J., Meissner, H. I., Baezconde-Garbanati, L., … Unger, J. B. (2019). Pro-tobacco marketing and anti-tobacco campaigns aimed at vulnerable populations: A review of the literature. Tobacco induced diseases, 17, 68. doi:10.18332/tid/111397
2019Dai, D, Leventhal, AM. Association of electronic cigarette vaping and subsequent smoking relapse among former smokers, Drug and Alcohol Dependence. 2019; Volume 199, Pages 10-17,
2019Dai H, Leventhal AM. Prevalence of e-Cigarette Use Among Adults in the United States, 2014-2018. JAMA. Published online September 16, 2019. doi:10.1001/jama.2019.15331
2019Escobedo P, Garcia R, Soto C, et al Comparison of e-cigarette marketing and availability in tobacco retail outlets among diverse low-income communities in California. Tobacco Control Published Online First: 19 July 2019. doi: 10.1136/tobaccocontrol-2019-054985
2019Galstyan E, Galimov A, Sussman S. Commentary: The Emergence of Pod Mods at Vape Shops. Evaluation & The Health Professions. 2019;42(1):118-124. doi:10.1177/0163278718812976
2019Goldenson, N. I., Leventhal, A. M., Simpson, K. A., & Barrington-Trimis, J. L. (2019). A Review of the Use and Appeal of Flavored Electronic Cigarettes. Current Addiction Reports, 6(2), 98–113.
2019Gotts, JE, Jordt, SE, McConnell, R, Tarran, R. What are the respiratory effects of e-cigarettes? BMJ 2019; 366 :l5275
2019Kintz N, Liu M, Chou C-Ping, Urman R, Berhane K, Unger JB, Boley Cruz T, McConnell R, Barrington-Trimis JL, Risk Factors Associated with Subsequent Initiation of Cigarettes and E-cigarettes in Adolescence: A Structural Equation Modeling Approach, Drug and Alcohol Dependence (2019), doi:
2019Kirkpatrick MG, Cruz TB, Unger JB, Herrera J, Schiff S, Allem J-P. Cartoon-based e-cigarette marketing: associations with susceptibility to use and perceived expectations of use. Drug and Alcohol Dependence. 2019; 201:109-114.
2019Kong, G., Mayer, M. E., Barrington-Trimis, J. L., McConnell, R., Leventhal, A. M., & Krishnan-Sarin, S. (2019). Longitudinal associations between use and co-use of cigars and cigarettes: A pooled analysis of three adolescent cohorts. Drug and Alcohol Dependence, 201, 45–48.
2019Kong, G., Simon, P., Mayer, M. E., Barrington-Trimis, J. L., Pacek, L. R., Cooper, M., Guy, MC, Stanton, C. A. (2019). Harm Perceptions of Alternative Tobacco Products among US Adolescents. Tobacco Regulatory Science, 5(3), 242-252.
2019Leventhal A, Bello M, Galstyan E, Higgins S, Barrington-Trimis J. Association of Cumulative Socioeconomic and Health-Related Disadvantage With Disparities in Smoking Prevalence in the United States, 2008 to 2017. JAMA Intern Med. 2019;179(6):777. doi:10.1001/jamainternmed.2019.0192
2019Leventhal A, Cho J, Barrington-Trimis J, et al. Sensory attributes of e-cigarette flavours and nicotine as mediators of interproduct differences in appeal among young adults. Tobacco Control. Published Online First: 18 December 2019. doi: 10.1136/tobaccocontrol-2019-055172
2019Leventhal, AM., Goldenson, NI., Aguirre, CG., Huh, J.,Kirkpatrick, MG. Initial application of a human laboratory model for estimating the motivational substitutability of e-cigarettes for combustible cigarettes. Experimental and Clinical Psychopharmacology. 2019; Advance online publication.
2019Leventhal, A.M., Goldenson, N.I., Barrington-Trimis, J., Pang, R., D., & Kirkpatrick, M.G. Non-Tobacco Flavors and Nicotine on e-Cigarette Product Appeal Among Young Adult Never, Former, and Current Smokers. Drug and Alcohol Dependence. 2019.
2019Leventhal, A. M., Goldenson, N. I., Barrington-Trimis, J. L., Pang, R. D., & Kirkpatrick, M. G. (2019). Effects of non-tobacco flavors and nicotine on e-cigarette product appeal among young adult never, former, and current smokers. Drug and Alcohol Dependence, 203, 99–106.
2019Leventhal AM, Goldenson NI, Cho J, et al. Flavored E-cigarette Use and Progression of Vaping in Adolescents. Pediatrics. 2019;144(5):e20190789
2019Leventhal AM, Miech R, Barrington-Trimis J, Johnston LD, O’Malley PM, Patrick ME. Flavors of e-Cigarettes Used by Youths in the United States. JAMA. 2019;322(21):2132–2134.doi:
2019Lienemann BA, Rose SW, Unger JB, Meissner HI, Byron MJ, Baezconde-Garbanati L, Huang L, Cruz TB (2019). Vulnerability Factors, Tobacco Advertisement Liking, and Tobacco Use among Young Adults. Nicotine and Tobacco Research, 20(3): 300-308, February 2019,
2019Majmundar, A.; Allem, J.-P.; Cruz, T.B.; Unger, J.B. Where Do People Vape? Insights from Twitter Data. Int. J. Environ. Res. Public Health 2019, 16, 3056.
2019Majmundar, A. Chou, CP. Cruz, T., Unger, JB. Relationship between social media engagement and e-cigarette policy support, Addictive Behaviors Reports. 2018;100155.ISSN 2352-8532;
2019Majmundar A, Kirkpatrick M, Cruz TB, et al Characterising KandyPens-related posts to Instagram: implications for nicotine and cannabis use Tobacco Control Published Online First: 30 May 2019. doi: 10.1136/tobaccocontrol-2019-055006
2019Mayer, M. E., Kong, G., Barrington-Trimis, J. L., McConnell, R., Leventhal, A. M., & Krishnan-Sarin, S. (2019). Blunt and Non-Blunt Cannabis Use and Risk of Subsequent Combustible Tobacco Product Use Among Adolescents. Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco.
2019Nguyen N, Barrington-Trimis JL, Urman R, Past 30-day co-use of tobacco and marijuana products among adolescents and young adults in California, Addictive Behaviors. 2019;
2019Pang, R. D., Guillot, C. R., Liautaud, M. M., Bello, M. S., Kirkpatrick, M. G., Huh, J., & Leventhal, A. M. Subjective effects from the first cigarette of the day vary with precigarette affect in premenopausal female daily smokers. Experimental and Clinical Psychopharmacology. 2019. Advance online. publication.
2019Perry, C. L., Creamer, M. R., Chaffee, B. W., Unger, J. B., Sutfin, E. L., Kong, G.,Shang, C.,Clendennen, SL., Krishnan- Sarin, S,Pentz, M. A. (2019). Research on Youth and Young Adult Tobacco Use, 2013–2018, From the Food and Drug Administration–National Institutes of Health Tobacco Centers of Regulatory Science. Nicotine & Tobacco Research, (ntz059).
2019Smiley SL, Kintz N, Baezconde-Garbanati L. Retail marketing for chewing tobacco in Los Angeles, California. Tobacco Prevention & Cessation. 2019;5(March):11. doi:10.18332/tpc/105109.
2019Smiley, SL., Kintz, N., Rodriguez, YL., Barahona, R., Sussman, S., Cruz, TB., Chou, CP.,Pentz, M., Samet, JM., Baezconde-Garbanati, Li. “Disparities in retail marketing for little cigars and cigarillos in Los Angeles, California.” Addictive Behaviors Reports. 2019; 9: 100149.
2019Sussman, S. Tobacco use topography and etiology: Similarities and differences among teens and emerging adults. Heart and Mind, 3(4), 133–139. 2019
2019Sussman, S., Kattari, S. K., Baezconde-Garbanati, L., & Glackin, S. N. Commentary: The Problems of Grouping All Adversity Into a Special Populations Label. Evaluation & the Health Professions. 2019. 163278719882738.


2018Aladadyan, L, Samet, JM. Chapter 11 - Tobacco products. An Overview of FDA Regulated Products. E. Pacifici and S. Bain, Academic Press; 2018: 231-250.
2018Allem JP, Dharmapuri L, Unger JB, Cruz TB. Characterizing JUUL-related posts on Twitter. Drug Alcohol Depend. 2018;190:1-5. PMID: 29958115
2018Allem JP, Dharmapuri L, Leventhal AM, Unger JB, Cruz TB. Hookah-related posts to Twitter from 2017 to 2018: thematic analysis. J Med Internet Res. 2018;20(11):e11669. PMID: 30455162
2018Allem JP, Ferrara E. Could social bots pose a threat to public health? Am J Public Health. 2018;108(8):1005-1006. PMCID: PMC6050826
2018Allem JP, Cruz TB, Unger JB, Toruno R, Herrera J, Kirkpatrick M. Return of cartoon to market e-cigarette-related products. Tob Control. Epub ahead of print 26 July 2018. PMID: 30049688
2018Astor R, Urman R, Barrington-Trimis J, Steinberg J, Cousineau M, Leventhal A, Unger JB, Cruz TB, Samet J, Pentz M, McConnell R. Association of Tobacco Retail Licensing with Youth Tobacco Product Use Prevalence and Initiation. Pediatrics Jan 2019, e20173536; DOI: 10.1542/peds.2017-3536.
2018Ayers JW, Drezde M, Leas EC, Caputi TL, Allem JP, Cohen JE. Next generation media monitoring: global coverage of electronic nicotine delivery systems (electronic cigarettes) on Bing, Google and Twitter, 2013-2018. PLoS One. 2018;13(11):e0205822. PMCID: PMC6214510
2018Barrington-Trimis, JL., Leventhal, AM., Alonzo, T., Cruz, TB., Urman, R., Pentz, MA., Unger, JB., McConnell, R. "Performance of cigarette susceptibility index among e-cigarette and hookah users." Drug and Alcohol Dependence. 2018;183: 43-50.
2018Basáñez, T., Majmundar, A., Cruz, TB., & Unger, JB. Vaping associated with healthy food words: A content analysis of Twitter. Addictive behaviors reports. 2018;8, 147-153. doi:10.1016/j.abrep.2018.09.007
2018Bold, KW., Sussman, S., O'Malley, SS., Grana, R., Foulds, J., Fishbein, H., Krishnan-Sarin, S. "Measuring E-cigarette dependence: Initial guidance." Addictive Behaviors. 2018; 79: 213-218.
2018Camenga, DR., Fiellin, LE., Pendergrass, T., Miller, E., Pentz, MA., Hieftje, K. "Adolescents' perceptions of flavored tobacco products, including E-cigarettes: A qualitative study to inform FDA tobacco education efforts through videogames." Addictive Behaviors. 2018; 82: 189-194.
2018Cho, J, Goldenson, NI, Stone, MD, McConnell, R, Barrington-Trimis, JL, Chou, CP, Sussman, SY, Riggs, NR, Leventhal, AM; Characterizing Polytobacco Use Trajectories and Their Associations With Substance Use and Mental Health Across Mid-Adolescence, Nicotine & Tobacco Research, Volume 20, Issue suppl_1, 14 August 2018, Pages S31–S38,
2018Chu KH., Allem JP., Unger JB., Cruz TB., Akbarpour M., Kirkpatrick MG. Strategies to find audience segments on Twitter for e-cigarette education campaigns. Addict Behav. Epub ahead of print 15 November 2018. PMID: 30497815
2018Chu KH, Colditz JB, Primack BA, Shensa A, Allem JP, Miller E, Unger JB, Cruz TB. JUUL: Spreading online and offline. J Adolesc Health. 2018;63(15):582:586. PMCID: PMC6201306
2018Cruz, TB., McConnell, R, Low, BW., Unger, JB., Pentz, MA., Urman, R, Berhane,K., Chou, CP., Liu, F., Barrington-Trimis,J.; "Tobacco Marketing and Subsequent Use of Cigarettes, E-cigarettes and Hookah in Adolescents." Nicotine & Tobacco Research. 2018; nty107-nty107.
2018Escobedo, P, Cruz, TB, Tsai, KY, Allem, JP, Soto, DW., Kirkpatrick, MG., Pattarroyo, M, Unger, JB.; Monitoring Tobacco Brand Websites to Understand Marketing Strategies Aimed at Tobacco Product Users and Potential Users, Nicotine & Tobacco Research, Volume 20, Issue 11, 25 September 2018, Pages 1393–1400,
2018Goldenson, NI., Khoddam, R., Stone, MD, Leventhal, AM. "Associations of ADHD Symptoms With Smoking and Alternative Tobacco Product Use Initiation During Adolescence." Journal of Pediatric Psychology. 2018; jsx153-jsx153.
2018Lienemann, BA., Rose, SW., Unger, JB., Meissner, HI., Byron, MJ., Baezconde-Garbanati, L., Huang, L., Cruz, TB."Tobacco Advertisement Liking, Vulnerability Factors, and Tobacco Use Among Young Adults." Nicotine & Tobacco Research. 2018; nty220-nty220.
2018Majmundar, A., Allem, JP., Cruz, TB., Unger, JB. The why we retweet scale. PLoS One. 2018;13(10):e0206076. PMCID: PMC6193720
2018Majmundar, A. Chou, CP. Cruz, T., Unger, JB. Relationship between social media engagement and e-cigarette policy support, Addictive Behaviors Reports.2018;100155.ISSN 2352-8532;
2018Morean, M., Krishnan-Sarin, S., Sussman, S., Foulds, J., Fishbein, H., Grana, R., O’Malley, SS. Psychometric Evaluation of the Patient-Reported Outcomes Measurement Information System (PROMIS) Nicotine Dependence Item Bank for Use With Electronic Cigarettes, Nicotine & Tobacco Research.2018; ntx271,
2018Pentz MA, Hieftje KD, Pendergrass TM, Brito SA, Liu M, Arora T, Tindle HA, Krishnan-Sarin S, Fiellin LE. A videogame intervention for tobacco product use prevention in adolescents. Addict Behav. 2018 Nov 14. pii: S0306-4603(18)31315-7. doi: 10.1016/j.addbeh.2018.11.016. [Epub ahead of print] PubMed PMID: 30477819.
2018Rose, SR., Glasser, A., Yitong, ZZ., Cruz, T., Cohn, A., Lienemann, B., Byron, JM., Huang, L., Meissner, H., Baezconde-Garbanati, L., Unger, J. Adolescent tobacco coupon receipt, vulnerability characteristics, and subsequent tobacco use: Analysis of the PATH Study, Waves 1 and 2. Tobacco Control Published Online First: 22 February 2018. doi: 10.1136/tobaccocontrol-2017-054141
2018Smiley, SL., Blackman, K., Bluthenthal, RN., Rodriguez, YL., Barahona, R., Sussman, S., Pentz, MA., Samet, J., Baezconde-Garbanati, L. “Who’s really regulating? Who’s benefiting?”: Exploring Black Stakeholders’ Awareness and Trust in the Food and Drug Administration’s Role as a Tobacco Regulator. Tobacco Regulatory Science, Volume 4, Number 4, 2018, pp. 41-49(9),
2018Smiley, SL., Soto, C., Cruz, T., Kintz, N., Rodriguez, YL., Sussman, S. Baezconde-Garbanati, L. Point of sale marketing of little cigars and cigarillos on and near California Tribal Lands. Tobacco Control. Published online first: 01 November 2018. doi:10.1136/tobaccocontrol-2018-054558.
2018Smiley, SL., Kierstead, EC., Harvey, E., Abudayyeh, H., Pearson, JL. An exploratory analysis of adult daily smokers’ experiences using e-cigarettes in smoke-free places. Tobacco Induced Diseases, 2018, 54.
2018Sussman, S., Cruz, TB., Smiley, SL., Chou, C., Unger, JB., Kintz, N. Baezconde-Garbanati, L.Tobacco regulatory compliance with STAKE Act age-of-sale signage among licensed tobacco retailers across diverse neighborhoods in Southern California. Tobacco Induced Diseases. 2018;16(June):30. doi:10.18332/tid/91846.
2018Unger, J. B., et al. "Talking about tobacco on Twitter is associated with tobacco product use." Preventive Medicine. 2018; 114: 54-56.
2018Urman R, McConnell R, Unger JB, Cruz TB, Samet JM, Berhane K, Barrington-Trimis JL. Electronic Cigarette and Cigarette Social Environments and Ever Use of Each Product: A Prospective Study of Young Adults in Southern California. Nicotine Tob Res. 2018 May 8. doi: 10.1093/ntr/nty097. [Epub ahead of print] PubMed PMID: 29741713.
2018Weaver S, Kim H, Glasser AM, Sutfin EL, Barrington-Trimis JL, Payne TJ, Saddleson M, Loukas A. "Establishing consensus on survey measures for electronic nicotine and non-nicotine delivery system use: Current challenges and considerations for researchers." Addictive Behaviors. 2018; 79: 203-212.
2018Yu, S., Escobedo, P., Garcia, R., Cruz, TB., Unger, JB., Baezconde-Garbanati, L., Meza, L., Sussman, S. A Descriptive Longitudinal Study of Changes in Vape Shop Characteristics and Store Policies in Anticipation of the 2016 FDA Regulations of Tobacco Products, Including E-Cigarettes. International journal of environmental research and public health. 2018;15(2), 313. doi:10.3390/ijerph15020313
2018Zhang Y, Allem JP, Unger JB, Cruz TB. Automated identification of hookahs (waterpipes) on Instagram: an application in feature extraction using Convolutional Neural Network and Support Vector Machine classification. J Med Internet Res. 2018;20(11):e10513. PMID: 30452385talking


2017Allem JP, Chu KH, Cruz TB, Unger JB. Waterpipe Promotion and Use on Instagram: #Hookah. Nicotine Tob Res. 2017 Oct 1;19(10):1248-1252. doi: 10.1093/ntr/ntw329. PubMed PMID: 28077449.
2017Allem JP, Escobedo P, Chu KH, Cruz TB, Unger JB. Images of little cigars and cigarillos on Instagram identified by the hashtag #swisher: thematic analysis. J Med Internet Res. 2017;19(7):e255. PMID: 28710057
2017Allem JP, Escobedo P, Cruz TB, Unger JB. Vape pen product placement in popular music videos. Addict Behav. Epub ahead of print 3 November 2017. PMID: 29128149
2017Allem JP, Ferrara E, Uppu SP, Cruz TB, Unger JB. E-Cigarette Surveillance With Social Media Data: Social Bots, Emerging Topics, and Trends. JMIR Public Health Surveill 2017;3(4):e98. DOI: 10.2196/publichealth.8641; PMID: 29263018; PMCID: 5752967
2017Allem JP, Ramanujam J, Lerman K, Chu KH, Cruz TB, Unger JB. Identifying sentiment of hookah-related posts on Twitter. JMIR Public Health Surveill. 2017;3(4)e:74. PMID: 29046267
2017Ayers JW, Leas EC, Allem JP, Benton A, Dredze M, Althouse BM, Cruz TB, Unger JB. Why do people use electronic nicotine delivery systems (electronic cigarettes)? A content analysis of Twitter, 2012-2015. PLoS One. 2017 Mar 1;12(3):e0170702. doi: 10.1371/journal.pone.0170702. eCollection 2017. PubMed PMID: 28248987; PubMed Central PMCID: PMC5331961.
2017Baezconde-Garbanati L, Cruz TB, Sussman S, Unger JB, Pentz MA, Samet JM. Maximizing Compliance with Tobacco Policy in Vulnerable Community Retail Environments: A Multicultural Case Study in Community-Based Participatory Research. SAGE Research Methods Cases . 2017.
2017Barrington-Trimis JL, Gibson L, Halpern-Felsher B, et al. Type of E-cigarette Device Used Among Adolescents and Young Adults: Findings from a pooled analysis of 8 studies of 2,166 vapers. Nicotine Tob Res. 2017; Ntx069.
2017Goldenson NI, Leventhal AM, Stone MD, McConnell RS, Barrington-Trimis JL. Associations of Electronic Cigarette Nicotine Concentration With Subsequent Cigarette Smoking and Vaping Levels in Adolescents. JAMA Pediatr. Published online October 23, 2017. doi:10.1001/jamapediatrics.2017.3209
2017Kirkpatrick MG, Cruz TB, Goldenson NI, Allem JP, Chu KH, Pentz MA, Unger JB. Electronic cigarette retailers use Pokémon Go to market products. Tob Control. 2017 Jan 2. pii: tobaccocontrol-2016-053369. doi:10.1136/tobaccocontrol-2016-053369. [Epub ahead of print] PubMed PMID: 28044010; PubMed Central PMCID: PMC5501764.
2017Kong G, Unger JB, Baezconde-Garbanati L, & Sussman S. The associations between Yelp online reviews and vape shops closing or remaining open one year later. Tobacco Prevention and Cessation . 2017; 2(7).
2017Lechner, W, Janssen, T, Kahler, C, Audrain-McGovern, J, Leventhal, A.M. "Bi-directional associations of electronic and combustible cigarette use onset patterns with depressive symptoms in adolescents." Preventive Medicine 2017; 96: 73-78.
2017Leventhal AM, Urman R, Barrington-Trimis JL, Goldenson NI, Gallegos K, Chou CP, Wang K, Berhane K, Cruz TB, Pentz MA, Unger JB, McConnell R. Perceived stress and poly-tobacco product use across adolescence: Patterns of association and gender differences. Journal of Psychiatric Research 94 (Supplement C): 172-179.
2017Lienemann BA, Unger JB, Cruz TB, Chu KH. Methods for Coding Tobacco-Related Twitter Data: A Systematic Review. J Med Internet Res . 2017; 19(3):e91.
2017Rudy, A., Leventhal, A.M., Goldenson, N.I.,* & Eissenberg, T. "Assessing electronic cigarette effects and regulatory impact: Challenges with user self-reported device power." Drug and Alcohol Dependence 2017;179: 337-340.
2017Russo A, Collins L, Solis AC, Abudayyeh HS, Villanti AC, Chansky MC, Wipfli HL, Glantz SA, Kern TT, Samet JM, Lawley RK, Benjamin AJ. Mentoring for Success in Tobacco Regulatory Science: A Qualitative Study. Tobacco Regulatory Science . 2017;3(3):280-292
2017Samet JM, Aladadyan L. Should the FDA Ban Cigarette Filter Ventilation?. JNCI: Journal of the National Cancer Institute . 2017;109(12).
2017Soneji S, Barrington-Trimis JL, Wills T, et al. E-Cigarette Use and Subsequent Cigarette Smoking Among Adolescents and Young Adults: A Systematic Review and Meta-Analysis. JAMA Pediatrics . 2017.
2017Sussman, S., & Barker, DC. Vape shops: The e-cigarette marketplace. Tobacco Prevention & Cessation, 2 (Supplement): 11, 2016/2017, 6 pages.
2017Walter, N., Demetriades, S. Z., & Murphy, S. T. Just a spoonful of sugar helps the messages go down: Using stories and vicarious self-affirmation to reduce e-cigarette use. Health communication, 2017; 1-9.


2016Allem J-P, Ayers JW, Althouse BM, Williams RS. When a ban really is not a ban: internet loopholes and Djarum flavoured cigarettes in the USA. Tob Control. 2016;25(4):489-490.
2016Allem J-P. Challenges to Mediation Analysis From Experimental Designs. Nicotine Tob Res. 2016:ntw318.
2016Allem JP, Escobedo P, Chu KH, Soto DW, Cruz TB, Unger JB. Campaigns and counter campaigns: reactions on Twitter to e-cigarette education. Tob Control. 2017 Mar;26(2):226-229. doi: 10.1136/tobaccocontrol-2015-052757. Epub 2016 Mar 8. PubMed PMID: 26956467; PubMed Central PMCID: PMC5018457.
2016Allem JP, Ferrara E. The importance of de-biasing social media data to better understand e-cigarette-related attitudes and behaviors. J Med Internet Res. 2016;18(8):e219. PMCID: PMC5037931
2016Allem J-P, Sussman S, Unger JB. The Revised Inventory of the Dimensions of Emerging Adulthood (IDEA-R) and Substance Use Among College Students. Eval Health Prof. 2016;1-8.
2016Allem J-P, Unger JB. Emerging adulthood themes and hookah use among college students in Southern California. Addict Behav.2016;61:16-19.
2016Barrington-Trimis JL, Berhane K, Unger JB, et al. The E-cigarette Social Environment, Ecigarette Use, and Susceptibility to Cigarette Smoking. J Adolesc Health. 2016;59(1):75-80.
2016Barrington-Trimis JL, Urman R, Berhane K, et al. E-cigarettes and Future Cigarette Use. 2016;138(1):1-8.
2016Barrington-Trimis JL, Urman R, Leventhal AM, et al. E-cigarettes, Cigarettes, and the Prevalence of Adolescent Tobacco Use. 2016; 138(2):1-10.
2016Chu K-H, Allem J-P, Cruz TB, Unger JB. Vaping on Instagram: cloud chasing, hand checks, and product placement. Tob Control. 2016;0:1–4.
2016Garcia R, Allem J-P, Baezconde-Garbanati L, Unger JB, Sussman S. Employee and customer handling of nicotine-containing e-liquids in vape shops. Tobacco Prevention and Cessation.2016;2(Suppl).
2016Garcia R., Sidhu A., Allem J. P., Baezconde-Garbanati L., Unger J. B., Sussman S. Marketing activities of vape shops across racial/ethnic communities. Tobacco Prevention & Cessation. 2016;2(Supplement):12. doi:10.18332/tpc/76398.
2016Gilreath TD, Leventhal A, Barrington-Trimis JL, et al. Patterns of Alternative Tobacco Product Use: Emergence of Hookah and E-cigarettes as Preferred Products Amongst Youth. J Adolesc Health. 2016;58(2):181–185.
2016Goldenson NI, Kirkpatrick MG, Barrington-Trimis JL, et al. Effects of sweet flavorings and nicotine on the appeal and sensory properties of e-cigarettes among young adult vapers: Application of a novel methodology. Drug Alcohol Depend. 2016;168:176-180.
2016Huh J , Leventhal AM. Intraindividual covariation between e-cigarette and combustible cigarette use in Korean American emerging adults. Psychology of Addictive Behaviors. 2016;30(2):246-251.
2016Huh J , Leventhal AM. Progression of Poly-tobacco Product Use Patterns in Adolescents. American Journal of Preventive Medicine. 2016;51(4):513-517.
2016Jeon C, Jung KJ, Kimm HJ, et al. E-cigarettes, conventional cigarettes, and dual use in Korean adolescents and university students: a cross sectional study. Drug Alcohol Depend. 2016 Nov; 168:99-103. PubMed PMID: 27635996.
2016Leventhal AM, Stone MD, Andrabi N, et al. Association of E-Cigarette Vaping and Progression to Heavier Patterns of Cigarette Smoking. 2016;316(18):1918-1920.
2016Leventhal AM, Strong DR, Sussman S, et al. Psychiatric comorbidity in adolescent electronic and conventional cigarette use. Journal of Psychiatric Research. 2016;73:71-78.
2016McConnell R, Barrington-Trimis JL, Wang K, et al. Electronic Cigarette Use and Respiratory Symptoms in Adolescents. American Journal of Respiratory and Critical Care Medicine. 2016;195(8):1043-1049.
2016Riggs NR, Pentz MA. Inhibitory control and the onset of combustible cigarette, e-cigarette, and hookah use in early adolescence: the moderating role of socioeconomic status. Child Neuropsychology. 2016;22(6):679-691.
2016Samet JM, Pentz MA, Unger, JB. Flavoured tobacco products and the public's health: lessons from the TPSAC menthol report. Tob Control. 2016;25(Suppl2):ii103-ii105.
2016Sussman S, Allem J-P, Garcia J, et al. Who walks into vape shops in Southern California?: A naturalistic observation of customers. Tob Induc Dis. 2016;14(1):18.
2016Sussman S, Baezconde-Garbanati L, Garcia R, et al. Commentary: Forces That Drive the Vape Shop Industry and Implications for the Health Professions. Eval Health Prof. 2016;39(3):379-388.
2016Tsai, Jennifer Y., Ricky Bluthenthal, Jon P. Allem, Robert Garcia, Jocelyn Garcia, Jennifer Unger, Lourdes Baezconde-Garbanati, and Steve Y. Sussman. Vape shop retailers’ perceptions of their customers, products and services: A content analysis. Tobacco Prevention & Cessation. 2016;2(Supplement):3. doi:10.18332/tpc/70345.
2016Unger JB, Escobedo P, Allem J-P, Soto D, Chu K, Cruz T. Perceptions of secondhand e-cigarette aerosol among Twitter users. Tob Regul Sci. 2016;2(2):146-152.
2016Unger, J.B., Soto, D., Leventhal, A.M. (2016). E-cigarette use and subsequent cigarette and marijuana use among Hispanic young adults.  Drug and Alcohol Dependence, 163, 261-264.
2016Wipfli H, Berman M, Hanson K, et al. Defining tobacco regulatory science competencies. Nicotine Tob Res. 2016;19(2):222-230.


2015Allem J-P, Forster M, Neiberger A, Unger JB. Characteristics of emerging adulthood and ecigarette use: Findings from a pilot study. Addict Behav. 2015;50:40–44.
2015Allem J-P, Unger JB, Garcia R, Baezconde-Garbanati L, Sussman S. Tobacco Attitudes and Behaviors of Vape Shop Retailers in Los Angeles. Am J Health Behav. 2015;39(6):794–798.
2015Barrington-Trimis JL, Berhane K, Unger JB, et al. Psychosocial Factors Associated With Adolescent Electronic Cigarette and Cigarette Use. 2015;136(2):308-317.
2015Chu K-H, Sidhu AK, Valente TW. Electronic Cigarette Marketing Online: a Multi-Site, Multi-Product Comparison. JMIR Public Health Surveill. 2015;1(2).
2015Chu K-H, Unger JB, Allem J-P, et al. Diffusion of Messages from an Electronic Cigarette Brand to Potential Users through Twitter. PLoS One. 2015;10(12):e0145387.
2015Chu K-H, Unger JB, Cruz TB, Soto DW. Electronic Cigarettes on Twitter – Spreading the Appeal of Flavors. Tob Regul Sci. 2015;1(1):36–41.
2015Leventhal AM, Strong DR, Kirkpatrick MG, et al. Association of Electronic Cigarette Use With Initiation of Combustible Tobacco Product Smoking in Early Adolescence. 2015;314(7):700-707.
2015Pentz MA, Shin H, Riggs N, Unger JB, Collison KL, Chou C-P. Parent, Peer, and Executive Function Relationships to Early Adolescent E-Cigarette Use: A Substance Use Pathway? Addict Behav. 2015;42:73–78.


2014Barrington-Trimis JL, Samet J, McConnell R. Flavorings in electronic cigarettes: An unrecognized Respiratory Health Hazard? JAMA. 2014;312(23):2493-2494.
2014Huang GC, Unger JB, Soto D, Fujimoto K, Pentz MA, Jordan-Marsh M, Valente TW. Peer influences: the impact of online and offline friendship networks on adolescent smoking and alcohol use. Journal of Adolescent Health. 2014;54(5):508-514.
2014Sussman S, Garcia R, Cruz TB, Baezconde-Garbanati L, Pentz MA, Unger JB. Consumers’ perceptions of vape shops in Southern California: an analysis of online Yelp reviews. Tob Induc Dis. 2014;12(1):22.



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