Fontan Udenafil Exercise Longitudinal Assessment Trial

Children's Hospital of New York, New York

Sejong General Hospital, Bucheon-si

Children's Hospital of Philadelphia, Philadelphia

Nemours Cardiac Center/Alfred I. duPont Hospital for Children, Wilmington

Children's National Medical Center, Washington D.C.

Duke University Medical Center, Durham

Medical University of South Carolina, Charleston

Children's Healthcare of Atlanta, Atlanta

Johns Hopkins All Children's Heart Institute, St. Petersburg

Vanderbilt University Medical Center, Nashville

Nationwide Children's Hosptial, Columbus

Cincinnati Children's Hospital Medical Center, Cincinnati

Riley Hospital for Children/Herman B. Wells Center for Pediatric Research, Indianapolis

Children's Hospital of Wisconsin, Milwaukee

Washington University St. Louis/St.Louis Children's Hospital, St Louis

Children's Mercy Hospital Kansas City, Kansas City

University of Nebraska Children's Hospital and Medical Center, Omaha

Texas Children's Hospital, Houston

Children's Hospital Colorado, Aurora

Primary Children's Medical Hospital/Dept. of Pediatric Cardiology, Salt Lake City

Phoenix Children's Hospital/Children's Heart Center at Phoenix Children's Hospital, Phoenix

Children's Hospital Los Angeles, Los Angeles

Cedars/Sinai Heart Institute, Los Angeles

Rady Children's Hospital, San Diego

Seattle Children's Hosptial, Seattle

Boston Children's Hospital, Boston

University of Michigan Congenital Heart Center/C.S. Mott Children's Hospital, Ann Arbor

Stollery Children's Hospital - University of Alberta, Edmonton

The Hospital for Sick Children, Toronto

Seoul National University Children's Hospital, Seoul