title: ABC electrocardiographic diagnosis of ventricular septal defect.
mesh_terms: D000328:Adult; D006332:Cardiomegaly / Q000175:diagnosis; D002648:Child; D004374:Ductus Arteriosus, Patent / Q000150:complications; D004562:Electrocardiography; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D011666:Pulmonary Valve Stenosis / Q000150:complications; D013771:Tetralogy of Fallot / Q000175:diagnosis