1. Department of Internal Medicine; Ronald Reagan UCLA Medical Center; Los Angeles California
2. Department of Internal Medicine; Rush University Medical Center; Chicago Illinois
3. Division of Pediatric Cardiology; University of Colorado Denver; Denver Colorado
4. Division of Pediatric Cardiology; Our Lady's Children Hospital; Dublin Ireland
5. Division of Pediatric Cardiology; Sidra Medical and Research Center; Doha Qatar
6. Division of Pediatric Cardiology; University of Washington; Seattle Washington
7. Division of Pediatric Cardiology; Mayo Clinic; Rochester Minnesota
8. Division of Pediatric Cardiology; Stanford University; Palo Alto California
9. Division of Cardiology; Rush University Medical Center; Chicago Illinois