[1
]
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; gaynor@email.chop.edu.
[2
]
Boston Children's Hospital, Boston, Massachusetts;
[3
]
Texas Children's Hospital, Houston, Texas;
[4
]
Stollery Children's Hospital and the Western Canadian Complex Pediatric Therapies
Follow-up Program, Edmonton, Alberta, Canada;
[5
]
Division of Pediatric Cardiology, Medical University of South Carolina, Charleston,
South Carolina;
[6
]
Starship Children's Hospital, Auckland, New Zealand;
[7
]
Children's National Medical Center, Washington, District of Columbia;
[8
]
Children's Hospital and Medical Center, Omaha, Nebraska;
[9
]
Medical College of Wisconsin, Children's Hospital of Wisconsin, Milwaukee, Wisconsin;
[10
]
Mott's Children's Hospital, Ann Arbor, Michigan;
[11
]
University Hospital Aachen, Aachen, Germany;
[12
]
Toyama University Hospital, Toyama, Japan;
[13
]
Johns Hopkins All Children's Heart Institute, St. Petersburg, Florida;
[14
]
University of Queensland, Brisbane, Australia;
[15
]
University Children's Hospital Zurich, Zurich, Switzerland;
[16
]
Duke University Medical Center, Durham, North Carolina;
[17
]
Children's Healthcare of Atlanta, Atlanta, Georgia;
[18
]
University of California, San Francisco, San Francisco, California;
[19
]
Primary Children's Medical Center, Salt Lake City, Utah;
[20
]
National Heart, Lung, and Blood Institute, Bethesda, Maryland;
[21
]
Children's Hospital Los Angeles, Los Angeles, California;
[22
]
Alfred I. duPont Hospital for Children, Wilmington, Delaware;
[23
]
The Royal Children's Hospital, Melbourne, Australia;
[24
]
University of British Columbia, Vancouver, British Columbia, Canada; and.
[25
]
New York-Presbyterian Morgan Stanley Children's Hospital of New York, New York, New
York.