title: Risk factors for multiple sclerosis: race or place?
authors: A
authors: A
authors: Compston
mesh_terms: D016000:Cluster Analysis; D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D006801:Humans; D015994:Incidence; D009103:Multiple Sclerosis / Q000209:etiology* / Q000235:genetics / Q000401:mortality; D012931:Social Environment