1. Division of Pediatric Cardiology; Morgan Stanley Children's Hospital of New York Presbyterian; New York New York
2. Division of Pediatric Cardiology; Johns Hopkins University; Baltimore Maryland
3. Division of Pediatric Cardiology; University of Virginia; Charlottesville Virginia
4. Division of Pediatric Cardiology; Children's Hospital of Wisconsin; Milwaukee Wisconsin
5. Department of Cardiology; Boston Children's Hospital, Boston Massachusetts, Children's Hospital Boston; Boston Massachusetts
6. Division of Pediatric Cardiology; Cincinnati Children's Hospital Medical Center; Cincinnati Ohio
7. Division of Pediatric Cardiology; Washington University in St. Louis; St. Louis Missouri
8. Division of Pediatric Cardiology; Children's Hospital of Pittsburgh; Pittsburgh Pennsylvania
9. Division of Pediatric Cardiology; Nationwide Children's Hospital; Columbus Ohio