1. LeBonheur Children's Hospital, University of Tennessee Memphis Tennessee USA
2. Abbott Structural Heart Santa Clara California USA
3. Children's Hospital of Michigan Detroit Michigan USA
4. Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
5. Nationwide Children's Hospital Columbus Ohio USA
6. St. Louis Children's Hospital St. Louis Missouri USA
7. Seattle Children's Hospital Seattle WA USA
8. Texas Children's Hospital Houston Texas USA
9. Arnold Palmer Hospital Orlando Florida USA
10. Cedars‐Sinai Medical Center Los Angeles California USA