Toronto General Hospital, Toronto, Ontario, Canada
Institute for Clinical and Experimental Medicine (IKEM), Prague, Czechia
Deutsches Herzzentrum Berlin, Berlin, Germany
James Cook University Hospital, Middlesbrough, United Kingdom
University of North Carolina, Chapel Hill, North Carolina, United States
UCLA Medical Center, Los Angeles, California, United States
Sutter Memorial, Sacramento, California, United States
Instituto del Corazon, Bucaramanga, Colombia
Sanatorio Italiano, Asuncion, Paraguay
Slaskie Centrum Chorob Serca w Zabrzu (Silesian Center for Heart Disease), Zabrze, Poland
Frankston Pain Management, Frankston, Australia
St Augustinus Ziekenhuis, Wilrijk, Antwerp, Belgium
University Hospital, Uppsala, Sweden
Munroe Regional Health System, Inc., Ocala, Florida, United States
Mount Sinai Hospital New York, New York, New York, United States
St. Francis Hospital, Roslyn, New York, United States
IKEM, Prague, Czechia
Na Homolce, Prague, Czechia
Asklepios St Georg, Hamburg, Germany
Ronald Reagan UCLA Medical Center, Los Angeles, California, United States
Emory University Hospital, Atlanta, Georgia, United States
Johns Hopkins University Hospital, Baltimore, Maryland, United States
Children's Healthcare of Atlanta, Atlanta, Georgia, United States
University of Utah Hospital, Salt Lake City, Utah, United States
Children's Hospital & Medical Center, Omaha, Nebraska, United States