1. Division of Cardiology, The Hospital for Sick Children, Toronto, Canada
2. Department of Cardiology, Nicklaus Children's Hospital, Miami, Florida, United States
3. Department of Pediatrics, Herbert Wertheim School of Medicine, Florida International University, Miami, Florida, United States
4. Division of Pediatric Critical Care Medicine and Pediatric Cardiology, Weill Cornell Medicine/New York-Presbyterian Komansky Children's Hospital, New York, United States