Do e-cigarettes help smokers quit?
D000280:Administration, Inhalation; D055615:Electrical Equipment and Supplies; D040261:Harm Reduction; D006801:Humans; D009538:Nicotine / Q000008:administration & dosage*; D016540:Smoking Cessation / Q000379:methods*; D000074606:Smoking Prevention; D014481:United States
D009538:Nicotine