title: Rickettsial and viral antibodies in multiple sclerosis.
mesh_terms: D000914:Antibodies, Viral; D006801:Humans; D009103:Multiple Sclerosis / Q000209:etiology*; D012282:Rickettsia Infections / Q000150:complications*; D014777:Virus Diseases / Q000150:complications*
chemical_list: D000914:Antibodies, Viral
keywords: MULTIPLE SCLEROSIS/etiology; RICKETTSIAL DISEASES/complications; VIRUS DISEASES/complications