1. Children’s Specialty Physicians, University of Nebraska Medical Center, University of Nebraska, Omaha, Nebraska
2. Creighton University Medical Center, Creighton University, Omaha, Nebraska
3. Seattle Children's Hospital and the University of Washington School of Medicine, Seattle, Washington
4. Lurie Children’s Hospital and Northwestern University, Chicago, Illinois
5. Children’s Healthcare of Atlanta Sibley Heart Center and School of Medicine, Emory University, Atlanta, Georgia
6. Mayo Clinic, Rochester, Minnesota
7. The Royal Children’s Hospital and University of Melbourne, Melbourne, Australia
8. Rainbow Babies and Children’s Hospital and Case Western Reserve University, Cleveland, Ohio
9. McGovern Medical School, The University of Texas and The University of Texas Health Science Center, Houston, Texas
10. Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children’s Hospital and Baylor College of Medicine, Houston, Texas
11. Children’s Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania
12. Advocate Heart Institute for Children and University of Chicago, Oak Lawn, Illinois