1. Visualization of ventricular septal defects by cardiac ultrasonography;King;Circulation,1973
2. Visualization of isolated ventricular septal defect with wide-angle two dimensional sector echocardiography (abstr);Seward;Circulation,1978
3. Prospective diagnosis of ventricular septal defects in infants by subxyphoid two-dimensional echocardiography (abstr);Blerman;Circulation,1979
4. Latson LA, Cheatham JP, Gutgesell HP. Spatial resolution of two-dimensional echocardiographic systems (abstr). Pediat Cardiol, in press.
5. Diagnosis of ventricular septal defect by pulsed Doppler echocardiography;Stevenson;Circulation,1978