1 Sidra Cardiovascular Center of Excellence, Department of Pediatrics, Sidra Medical & Research Center, Doha, Qatar. Electronic address: [email protected].
2 Lenox Hill Heart & Vascular Institute of New York, New York, New York.
3 Guerin Family Congenital Heart Program, Cedars-Sinai Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California.