title: Response to letter regarding article, "Electronic cigarettes: a scientific review".
authors: Rachel
authors: R
authors: Grana
authors: Neal
authors: N
authors: Benowitz
authors: Stanton
authors: S
authors: Glantz
mesh_terms: D006801:Humans; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation / Q000379:methods*; D062789:Tobacco Products