Rickettsial antibodies in multiple sclerosis.
D000372:Agglutination Tests; D000906:Antibodies / Q000032:analysis*; D003168:Complement Fixation Tests; D006801:Humans; D009103:Multiple Sclerosis / Q000276:immunology* / Q000382:microbiology; D012282:Rickettsia Infections / Q000150:complications*
D000906:Antibodies