title: Optic neuritis and multiple sclerosis.
authors.forename: Leonard A
authors.initials: LA
authors.lastname: Levin
authors.forename: Simmons
authors.initials: S
authors.lastname: Lessell
mesh_terms: D006801:Humans; D009103:Multiple Sclerosis / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D009902:Optic Neuritis / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology; D012307:Risk Factors