title: Recent advances in investigation of polymyositis.
mesh_terms: D001706:Biopsy; D004576:Electromyography; D006801:Humans; D009132:Muscles / Q000473:pathology; D009220:Myositis / Q000175:diagnosis* / Q000201:enzymology / Q000473:pathology; D009468:Neuromuscular Diseases / Q000175:diagnosis / Q000201:enzymology / Q000473:pathology