1. Section of Cardiology, Department of Pediatrics, Baylor College of Medicine, Texas Children’s Hospital Heart Center, Houston, Texas;
2. Heart Center, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois;
3. Adult Congenital Heart Disease Program, Massachusetts General Hospital, Boston, Massachusetts;
4. Family Health Centers, Louisville, Kentucky;
5. Physician Organizations and Academic Relations, Children’s Health Children’s Medical Center, Dallas, Texas;
6. Department of Cardiology, Boston Children’s Hospital, Department of Pediatrics, Harvard Medical School, Boston, Massachusetts; and
7. Division of Pediatric Cardiology, Department of Pediatrics, University of Michigan School of Medicine, Ann Arbor, Michigan