Institut Jules Bordet, Brussels, Belgium
Vrije Universiteit Medisch Centrum, Amsterdam, Netherlands
National Cancer Institute - Cairo, Cairo, Egypt
National Institute of Oncology, Budapest, Hungary
Westpfalz-Klinikum GmbH, Kaiserslautern, Germany
Clinique Tivoli, Bordeaux, France
C.H.G. Beauvais, Beauvais, France
Centre Hospitalier d'Abbeville, Abbeville, France
Universitair Ziekenhuis Antwerpen, Edegem, Belgium
CHU Pitie-Salpetriere, Paris, France
Centre de Lutte Contre le Cancer, Georges-Francois Leclerc, Dijon, France
Centre Hospitalier Etterbeek Ixelles, Brussels, Belgium
Azienda Istituti Ospitalieri, Cremona, Italy
Clinica Alemana, Santiago, Chile
Centre Antoine Lacassagne, Nice, France
Institut Jules Bordet, Brussels, Belgium
Akademisch Ziekenhuis Gent, Ghent, Belgium
National Cancer Institute - Bratislava, Bratislava, Slovakia
Ibn-i Sina Hospital, Ankara, Turkey
Charite - Campus Charite Mitte, Berlin, Germany
Universitaetsklinikum Essen, Essen, Germany
Centre Leon Berard, Lyon, France
Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
Doctor H. Bliss Murphy Cancer Centre, St. John's, Newfoundland and Labrador, Canada