Heart Defects, Congenital

• University of Ottawa Heart Institute — Ottawa, Ontario, Canada
• Sunnybrook Health Sciences Centre — Toronto, Ontario, Canada
• St. Michael's Hospital — Toronto, Ontario, Canada
• University Health Network — Toronto, Ontario, Canada

• Children's Hospital Boston — Boston, Massachusetts, United States
• Columbia College of Physicians and Surgeons — New York, United States
• Duke University Medical Center — Durham, North Carolina, United States
• Cincinnati Children's Hospital Medical Center — Cincinnati, Ohio, United States

• Institute of Cardiovascular Surgery, Xijing Hospital — Xi'an, Shannxi, China

• University of Vermont — Burlington, Vermont, United States

Not specified