CRLCC Nantes - Atlantique, Nantes-Saint Herblain, France
Leiden University Medical Center, Leiden, Netherlands
Istituto Nazionale per la Ricerca sul Cancro, Genoa (Genova), Italy
Groot Ziekengasthuis 's-Hertogenbosch, 's-Hertogenbosch, Netherlands
U.Z. Gasthuisberg, Leuven, Belgium
Azienda Ospedale S. Luigi - Universita Di Torino, Orbassano, (Torino), Italy
Universitaetsklinik und Strahlenklinik - Essen, Essen, Germany
Centre Hospitalier Regional de la Citadelle, Liege (Luik), Belgium
Istituto Europeo Di Oncologia, Milano, Italy
Landeskrankenanstalten - Salzburg, Salzburg, Austria
U.Z. Gasthuisberg, Leuven, Belgium
St. Elisabeth Ziekenhuis, Tilburg, Netherlands
Western General Hospital, Edinburgh, Scotland, United Kingdom
Liverpool Hospital, Liverpool, New South Wales, Australia
Universitair Ziekenhuis Antwerpen, Edegem, Belgium
Federico II University Medical School, Naples (Napoli), Italy
Ospedale S. Gennora USL 42, Naples (Napoli), Italy
University Medical Center Nijmegen, Nijmegen, Netherlands
Academisch Ziekenhuis Utrecht, Utrecht, Netherlands
Institut Jules Bordet, Brussels (Bruxelles), Belgium
CHR Hotel Dieu, Nantes, France
Hospital Universitari de Bellvitge, Barcelona, Spain
Allgemeines Krankenhaus - Universitatskliniken, Vienna, Austria
Onze Lieve Vrouwe Gasthuis, Amsterdam, Netherlands
Dokuz Eylul University School of Medicine, Izmir, Turkey
Daniel Den Hoed Cancer Center at Erasmus University Medical Center, Rotterdam, Netherlands