1. Department of Pediatrics; Medical University of South Carolina; Charleston; South Carolina
2. Rush Center for Congenital & Structural Heart Disease; Rush University Medical Center; Chicago; Illinois
3. Department of Pediatrics; Duke University Medical Center; Durham; North Carolina
4. Department of Medicine; Cedar Sinai Medical Center; Los Angeles; California
5. Edwards Lifesciences; Irvine; California
6. Department of Medicine; The Heart Hospital; London; United Kingdom
7. The Ward Family Heart Center; Children's Mercy Hospital; Kansas City; Missouri