Dr. Pierre Wong is the Director of Echocardiography and the Cardiac Registry at Children’s Hospital Los Angeles. He is Professor of Clinical Pediatrics at the Keck School of Medicine, University of Southern California, Los Angeles, California. Dr. Wanda C. Miller-Hance is Professor of Anesthesiology and Pediatrics at Baylor College of Medicine, Houston, TX. She is a member of the medical staff at Texas Children’s Hospital and the Texas Heart Institute. She shares responsibilities in the Arthur S. Keats Division of Pediatric Cardiovascular Anesthesiology and the Section of Pediatric Cardiology at Texas Children’s Hospital.