title: Polymyositis and dermatomyositis.
mesh_terms: D001706:Biopsy; D003882:Dermatomyositis / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000627:therapeutic use; D009132:Muscles / Q000473:pathology; D009135:Muscular Diseases / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology; D009369:Neoplasms / Q000150:complications; D011241:Prednisone / Q000627:therapeutic use
chemical_list: D011241:Prednisone; D008727:Methotrexate