University of Medicine and Pharmacy Craiova, Romania
Gentofte University Hospital, Copenhagen, Denmark
Universite Chatolique Louvain, Brussels, Belgium
University Hospital Odense, Denmark
Institute Paoli Calmettes, Marseille, France
Dr.Horst-Schmidt-Klinik, Wiesbaden, Germany
SRH Klinik, Gera, Germany
Caritas-Krankenhaus, Bad Mergentheim, Germany
University Clinic Mainz, Mainz, Germany
HELIOS Klinikum Wuppertal, University of Witten/Herdecke, Wuppertal, Germany
St. Josef Hospital, Bochum, Germany
Hospital San Raffaele, Milan, Italy
Erasme Medisch Centrum, Rotterdam, Netherlands
University of Haukeland, Bergen, Norway
University Hospital Santiago, Santiago, Spain
Glasgow Royal Infirmary, Glasgow, United Kingdom
Newcastle Upon Tyne Hospitals, Newcastle, United Kingdom