Cincinnati (University of Cincinnati Medical Center)
Cleveland (The Cleveland Clinic Foundation)
Dallas (Children's Hospital)
Dallas (University of Texas Southwestern)
Edmonton (University of Alberta)
Grand Rapids (St. Mary's Health Center)
Hamilton (St. Joseph's Hospital)
Kansas City (Research Medical Center)
Kansas City (Saint Luke's Hospital of Kansas City)
Kansas City (Univ of Kansas Med Center)
Louisville (Jewish Hospital)
New Orleans
New York (Montefiore Medical Center)
Orlando (Florida Hospital Medical Center/TransLife)
Portland (Oregon Health Sciences University)
Portland (Portland VA Medical Center)
Quebec (CHUQ - Pavillon l'Hotel-Dieu de Quebec)
Stanford (Lucile Packard Children's Hospital at Stanford)
Toronto (General Hospital)
Valhalla (Westchester Medical Center)
Winnipeg (Health Sciences Centre)
Ann Arbor
Chicago (Children's Memorial Hospital)
Columbus
Dallas (Children's Medical Center)
Dallas (University of Texas Southwestern)
Edmonton (University of Alberta Hospital)
Fort Wayne (Lutheran Hospital of Indiana)
Hershey (Penn State Geisinger Health System)
Kansas City (The University of Kansas Hospital)
Loma Linda (Loma Linda University Medical Center & Children's Hospital)
London (London Health Sciendes Centre)
Louisville (Jewish Hospital)
Louisville (Kosair Children's Hospital)
Miami (University of Miami/Jackson Memorial Hospital)
Milwaukee (St. Luke's Medical Center)
Montreal (Institut de Cardiologie de Montreal)
New Orleans
New York
Portland (Oregon Health & Sciences University)
Quebec (Quebec Heart Institute)
San Francisco (University of California at San Francisco)
Toronto (General Hospital)
Tucson (University Medical Center)
Winnipeg (Manitoba Lung Transplant Program)
Dallas (Baylor)
Dallas (Children's Medical Center)
Edmonton (University of Alberta Hospital)
Louisville (Jewish Hospital)
New Orleans
Toronto (Toronto General Hospital)
Cincinnati (University of Cincinnati Medical Center)
Cleveland (The Cleveland Clinic Foundation)
Dallas (University of Texas Southwestern)
Edmonton (University of Alberta Hospital)
Louisville (Jewish Hospital)
New Orleans
Portland (Oregon Health Sciences University)
Toronto (General Hospital)