1. Two-dimensional real-time ultrasonic imaging of the heart and great vessels. Technique, image orientation, structure identification and validation;Tajik, A.J.; Seward, J.B.; Hagler, D.J.; Mair, D.D.; Lie, J.T.,1978
2. Subxiphoid two-dimensional imaging of the interatrial septum in infants and neonates with congenital heart disease;Bierman, F.Z.; Williams, R.G.;Circulation,1979
3. Subxiphoid cross-sectional echocardiography in infants and children with congenital heart disease;Lange, L.W.; Sahn, D.J.; Allen, H.D.; Goldberg, S.J.;Circulation,1979
4. Cross-sectional echocardiographic examination of the interatrial septum;Dillon, J.C.; Weyman, A.E.; Feigenbaum, H.; Eggleton, R.C.; Johnston, K.;Circulation,1977
5. Apex echocardiography. A two-dimensional technique for evaluating congenital heart disease;Silverman, N.H.; Schiller, N.B.;Circulation,1978