1. National Institute on Drug Abuse National Institutes of Health U.S. Department of Health and Human Services. Monitoring the future survey: high school and youth trends. https://www.drugabuse.gov/publications/drugfacts/monitoring-future-survey-high-school-youth-trends. Accessed October 18 2019.
2. Centers for Disease Control and Prevention. Substance use and sexual risk behaviors among youth. https://www.cdc.gov/healthyyouth/substance-use/pdf/dash-substance-use-fact-sheet.pdf. Accessed October 18 2019.
3. Centers for Disease Control and Prevention. High-risk substance use among youth. https://www.cdc.gov/healthyyouth/substance-use/. Accessed October 18 2019.
4. US Department of Health and Human Services. How common is adolescent alcohol use? https://www.hhs.gov/ash/oah/adolescent-development/substance-use/alcohol/how-common/index.html. Accessed October 18 2019.
5. US Department of Health and Human Services. Risks of adolescent alcohol use. https://www.hhs.gov/ash/oah/adolescent-development/substance-use/alcohol/risks/index.html. Accessed October 18 2019.