1. Division of Cardiology Seattle Children's Hospital Seattle Washington
2. Department of Pediatrics University of Washington School of Medicine Seattle Washington
3. Division of Cardiology, Department of Internal Medicine University of Washington School of Medicine Seattle Washington
4. Pediatric Clinical Program Intermountain Healthcare Salt Lake City Utah
5. Division of Pediatric Critical Care Medicine, Department of Pediatrics University of Utah School of Medicine Salt Lake City Utah
6. Department of Pediatrics Harvard Medical School Boston Massachusetts
7. Department of Cardiology Boston Children's Hospital Boston Massachusetts
8. Division of Pediatric Cardiology, Department of Pediatrics University of Colorado School of Medicine Aurora Colorado
9. Division of Pediatric Critical Care Medicine, Department of Pediatrics University of Washington School of Medicine Seattle Washington