1. E-cigarette use among high school and middle school adolescents in Connecticut.;Krishnan-Sarin;Nicotine Tob Res,2015
2. Johnston LD, O’Malley PM, Miech RA, Bachman JG, Schulenberg JE. Monitoring the Future National Survey results on drug use, 1975-2015: overview, key findings on adolescent drug use. Published 2016. Available at: www.monitoringthefuture.org/pubs/monographs/mtf-overview2015.pdf. Accessed March 6, 2016
3. Ever use of nicotine and nonnicotine electronic cigarettes among high school students in Ontario, Canada.;Hamilton;Nicotine Tob Res,2015
4. National Institute on Drug Abuse
. Monitoring the Future Survey, overview of findings 2015.Published 2015. Updated December 2015. Available at: https://www.drugabuse.gov/related-topics/trends-statistics/monitoring-future/monitoring-future-survey-overview-findings-2015. Accessed March 20, 2016
5. Nicotine levels in electronic cigarettes.;Goniewicz;Nicotine Tob Res,2013