1. Department of Cardiology Boston Children’s Hospital Boston Massachusetts USA
2. Kirklin Institute for Research in Surgical Outcomes University of Alabama at Birmingham Birmingham Alabama USA
3. Division of Pediatric Cardiology Children’s Mercy Hospital Kansas City Missouri USA
4. Division of Pediatric Cardiology Levine Children’s Hospital Atrium Health Charlotte North Carolina USA
5. Division of Pediatric Cardiology Cleveland Clinic Children’s Hospital Cleveland Ohio USA
6. Division of Pediatric Cardiology University of Minnesota Masonic Children’s Hospital Minneapolis Minnesota USA
7. Division of Cardiology Ann & Robert H. Lurie Children’s Hospital of Chicago Chicago Illinois USA
8. Division of Cardiology University of Colorado Anschutz Medical Center Children’s Hospital of Colorado Aurora Colorado USA