Heart failure from unexplained cardiomyopathy.
D000293:Adolescent; D000328:Adult; D000792:Angiography; D009202:Cardiomyopathies / Q000150:complications* / Q000175:diagnosis; D002648:Child; D004562:Electrocardiography; D005260:Female; D006333:Heart Failure / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography