title: Letter: Multiple sclerosis and measles virus.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D008459:Measles virus / Q000276:immunology; D009103:Multiple Sclerosis / Q000209:etiology*
chemical_list: D000914:Antibodies, Viral