The University of British Columbia, Vancouver, Canada
Hospital Sant Joan de Déu, Barcelona, Spain
Universitätsmedizin Göttingen, Klinik für Pädiatrische Kardiologie, Intensivmedizin und Neonatologie, Göttingen, Germany
Site # 1025, West Des Moines, Iowa, United States
Site # 0205, Montreal, Quebec, Canada
Site # 0203, Montréal, Quebec, Canada
Treant Zorggroep, Emmen, Netherlands
Jeroen Bosch Ziekenhuis Rijnstate Ziekenhuis, Arnhem, Netherlands
Slingeland Ziekenhuis, Doetinchem, Netherlands
1123, Corvallis, Oregon, United States
105, Yardley, Pennsylvania, United States
1035, Stanford, California, United States
Piedmont Heart Institute, Atlanta, Georgia, United States
Iowa Heart Center, West Des Moines, Iowa, United States
Los Alamitos Cardiovascular, Los Alamitos, California, United States
Cardiology Associates of Fairfield County, Norwalk, Connecticut, United States
St. Michael's Hospital, Toronto, Ontario, Canada
The Ohio State University (OSU) Wexner Medical Center, Columbus, Ohio, United States
MAPI, Lexington, Kentucky, United States
Sunnybrook Health Sciences Center, Toronto, Ontario, Canada
St. Michael's Hospital, Toronto, Ontario, Canada
Great Lakes Medical Research, LLC, Willoughby, Ohio, United States