title: Worldwide decline in semen quality might be due to smoking.
authors.forename: M F
authors.initials: MF
authors.lastname: Vine
mesh_terms: D006801:Humans; D008297:Male; D009845:Oligospermia / Q000209:etiology*; D012661:Semen / Q000502:physiology*; D012907:Smoking / Q000009:adverse effects*; D013076:Sperm Count