title: Polymyositis--clinical trials.
mesh_terms: D001706:Biopsy; D002986:Clinical Trials as Topic; D003402:Creatine Kinase / Q000097:blood; D004576:Electromyography; D006801:Humans; D009123:Muscle Hypotonia / Q000175:diagnosis; D009220:Myositis / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology
chemical_list: D003402:Creatine Kinase