title: New diagnostic criteria for multiple sclerosis: guidelines for research protocols.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D019411:Clinical Laboratory Techniques; D006801:Humans; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000145:classification / Q000175:diagnosis* / Q000503:physiopathology; D012107:Research Design; D009626:Terminology as Topic