title: Risk factors of multiple sclerosis.
authors.forename: P
authors.initials: P
authors.lastname: Torelli
authors.forename: G C
authors.initials: GC
authors.lastname: Manzoni
mesh_terms: D015897:Comorbidity; D005260:Female; D006801:Humans; D008297:Male; D008881:Migraine Disorders / Q000453:epidemiology*; D009103:Multiple Sclerosis / Q000453:epidemiology*; D015995:Prevalence; D012107:Research Design; D012307:Risk Factors