Cardiac involvement in chronic polymyositis.
D000328:Adult; D002908:Chronic Disease; D003882:Dermatomyositis / Q000150:complications*; D006327:Heart Block / Q000150:complications; D006331:Heart Diseases / Q000150:complications*; D006333:Heart Failure / Q000150:complications; D006801:Humans; D008297:Male; D009135:Muscular Diseases / Q000150:complications*