[1] Univ Hosp Carl Gustav Carus, Dresden, Germany
[2] Klin Nowotworow Przewodu Pokarmowego Ctr On, Warsaw, Poland
[3] Natl Inst Oncol, Budapest, Hungary
[4] Univ Politecn Marche, Ancona, Italy
[5] NCI, MPH, Kiev, Ukraine
[6] Hosp Clin Barcelona, Barcelona, Spain
[7] Univ Versailles, CHU Ambroise Pare, Boulogne, France
[8] Royal Marsden NHS Fdn Trust, London, England
[9] Merck Serono, Darmstadt, Germany
[10] Univ Hosp Gasthuisberg, B-3000 Leuven, Belgium