title: Intraventricular electrocardiographic study on right ventricular hypertrophy especially in patients with chronic obstructive pulmonary disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D001249:Asthma / Q000150:complications; D001991:Bronchitis / Q000150:complications; D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000150:complications / Q000175:diagnosis*; D002908:Chronic Disease; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications*; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography; D011656:Pulmonary Emphysema / Q000150:complications