[Echocardiography in chronic cor pulmonale: its value in early diagnosis as compared with roentgenography and electrocardiography (author's transl)].
D000328:Adult; D000368:Aged; D002908:Chronic Disease; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011660:Pulmonary Heart Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography