title: Smoking may be considered an established risk factor for sporadic ALS.
authors.forename: M G
authors.initials: MG
authors.lastname: Weisskopf
authors.forename: V
authors.initials: V
authors.lastname: Gallo
authors.forename: E J
authors.initials: EJ
authors.lastname: O'Reilly
authors.forename: P
authors.initials: P
authors.lastname: Vineis
authors.forename: A
authors.initials: A
authors.lastname: Ascherio
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000453:epidemiology* / Q000209:etiology*; D019317:Evidence-Based Medicine; D005260:Female; D006801:Humans; D008297:Male; D012907:Smoking / Q000009:adverse effects*