1. The Heart Institute, Cincinnati Children’s Hospital Medical Center, Department of Pediatrics, University of Cincinnati, College of Medicine, Cincinnati, OH, USA
2. The James M. Anderson Center for Health Systems Excellence, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
3. Boston Children’s Hospital, Department of Pediatrics, Harvard Medical School, Boston, MA, USA
4. Sisters by Heart, Phoenix, AZ, USA
5. Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
6. Congenital Heart Center, C.S. Mott Children’s Hospital, University of Michigan Medical School, Ann Arbor, MI, USA
7. Advocate Children’s Heart Institute, Advocate Children’s Hospital, Oak Lawn, IL, USA
8. Children’s Hospital of Wisconsin, Milwaukee, WI, USA