Vaping: The New Gateway Drug for At Risk Teens? Can Nicotine Cause a False Positive Drug Test? Facts About Vaping, Nicotine and Drug Screening Vaping: Clearing the Air Baker Institute How vaping, smoking, alcohol and drugs affects teens Parent Club 5 Vaping Facts You Need to Know Johns Hopkins Medicine Teens are cutting back on drugs, alcohol, smoking and even electronic cigarettes, study finds Los Angeles Times