title: Nature and nurture in ALS.
authors.forename: M
authors.initials: M
authors.lastname: Swash
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics; D015386:Hazardous Substances / Q000009:adverse effects*; D006801:Humans
chemical_list: D015386:Hazardous Substances