title: [Primary polymyositis: clinical, electromyographic and pathological studies of 39 cases].
authors.forename: Z H
authors.initials: ZH
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D001706:Biopsy; D002648:Child; D003907:Dexamethasone / Q000627:therapeutic use; D004576:Electromyography; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000473:pathology; D009220:Myositis / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology; D011241:Prednisone / Q000627:therapeutic use
chemical_list: D003907:Dexamethasone; D011241:Prednisone; D006854:Hydrocortisone