1. Echocardiographic bidimensionelle du nouveau ne au grand enfont;Didier,1984
2. Prospective identification of ventricular septal defects in infancy using subxiphoid two-dimensional echocardiography;Bierman;Circulation,1980
3. Two dimensional anatomy of the heart;Sahn,1982
4. Two dimensional echocardiography in congenital heart disease;Silverman,1982
5. Pulsed Doppler echocardiographic estimation of the pressure gradient across ventricular septal defect; combination with real time two-dimensional Doppler flow mapping system (abstr);Shimizu,1985