Powell Andrew J, Tsai-Goodman Beverly, Prakash Ashwin, Greil Gerald F, Geva Tal
Department of Cardiology, Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA.
Am J Cardiol. 2003 Jun 15;91(12):1523-5, A9. doi: 10.1016/s0002-9149(03)00417-x.