title: An assessment of plasma exchange in progressive multiple sclerosis.
mesh_terms: D002986:Clinical Trials as Topic; D004185:Disability Evaluation; D004311:Double-Blind Method; D005069:Evaluation Studies as Topic; D006801:Humans; D007165:Immunosuppression Therapy; D009103:Multiple Sclerosis / Q000503:physiopathology / Q000628:therapy*; D010951:Plasma Exchange