Jessa Medica Center, Hasselt, Belgium
TUM Klinikum Deutsches Herzzentrum, Munich, Germany
Uniklinikum Munster, Munster, Germany
Military Hospital of Wroclaw, Wroclaw, Poland
Johns Hopkins University, Baltimore, Maryland, United States
University of Massachusetts, Worcester, Massachusetts, United States
Clearwater Cardiovascular, Clearwater, Florida, United States