title: Multiple sclerosis: Latitude and vitamin D influence disease course in multiple sclerosis.
authors.forename: Heather
authors.initials: H
authors.lastname: Wood
mesh_terms: D018450:Disease Progression; D006801:Humans; D009103:Multiple Sclerosis; D012307:Risk Factors; D014807:Vitamin D
chemical_list: D014807:Vitamin D