US study adds to debate over whether e-cigarettes lead to smoking in young people.
Seattle.
Michael
M
McCarthy
D000293:Adolescent; D000294:Adolescent Behavior; D066300:Electronic Nicotine Delivery Systems / Q000009:adverse effects*; D006801:Humans; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation / Q000706:statistics & numerical data; D014481:United States / Q000453:epidemiology