[Does the e-cigarette entice adolescents to tobacco smoking?].
D000293:Adolescent; D003430:Cross-Sectional Studies; D066300:Electronic Nicotine Delivery Systems / Q000009:adverse effects* / Q000706:statistics & numerical data*; D005858:Germany; D006801:Humans; D033242:Minors / Q000331:legislation & jurisprudence; D012907:Smoking / Q000453:epidemiology* / Q000331:legislation & jurisprudence*