title: The epidemiology of multiple sclerosis.
authors.affiliation: MRC Environmental Epidemiology Unit, Southampton General Hospital, United Kingdom.
authors.forename: C N
authors.initials: CN
authors.lastname: Martyn
authors.forename: C R
authors.initials: CR
authors.lastname: Gale
mesh_terms: D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D004641:Emigration and Immigration; D006801:Humans; D015994:Incidence; D009103:Multiple Sclerosis / Q000453:epidemiology* / Q000209:etiology / Q000235:genetics; D012307:Risk Factors