Yan Peng, Duffy C Elise, Weigel Thomas, Young Luciana
Division of Cardiology/Non-Invasive Imaging, Children's Memorial Hospital, Children's Memorial Medical Center, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60614, USA.
Pediatr Cardiol. 2009 Apr;30(3):380-1. doi: 10.1007/s00246-008-9347-4. Epub 2008 Dec 13.