Assessment of cardiac function by three-dimensional echocardiography compared with conventional noninvasive methods. - Gopal,A.S.; Shen,Z.; Sapin,P.M.; Keller,A.M.; Schnellbaecher,M.J.; Leibowitz,D.W.; Akinboboye,O.O.; Rodney,R.A.; Blood,D.K.; King,D.L. (Circulation, 1995)