Ringel Richard E, Peddy Stacie B
Department of Pediatrics, Division of Pediatric Cardiology, Brady 516, Johns Hopkins School of Medicine, Johns Hopkins Hospital, 600 N. Wolfe Street, Baltimore, MD 21287, USA.
Am J Cardiol. 2003 Apr 15;91(8):1031-2, A9. doi: 10.1016/s0002-9149(03)00135-8.