title: Smoking, the unnecessary risk factor.
authors.affiliation: Quebec Heart Institute, Laval Hospital, Quebec City.
authors.forename: G R
authors.initials: GR
authors.lastname: Dagenais
mesh_terms: D002318:Cardiovascular Diseases / Q000209:etiology*; D006801:Humans; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects*