title: Multiple sclerosis in Nordland County.
authors.forename: Klaus
authors.initials: K
authors.lastname: Lauer
mesh_terms: D005519:Food Preservation / Q000379:methods; D006801:Humans; D009103:Multiple Sclerosis / Q000453:epidemiology*; D009664:Norway / Q000453:epidemiology; D015995:Prevalence; D012307:Risk Factors