Nayar Ambika C, McAleer Eileen P, Tunick Paul A, Applebaum Robert M, Colvin Stephen B, Kronzon Itzhak
The Noninvasive Cardiology Laboratory, New York University School of Medicine, New York, NY 10016, USA.
Echocardiography. 2002 Oct;19(7 Pt 1):571-2. doi: 10.1046/j.1540-8175.2002.00571.x.