[1] Erasme Univ Hosp, Brussels, Belgium
[2] St Luc Univ Clin, Brussels, Belgium
[3] Ghent Univ Hosp, Div Digest Oncol, Dept Gastroenterol, Ghent, Belgium
[4] Ctr Leon Berard, Lyon, France
[5] Inst Cancerol Lorraine, Vandoeuvre Les Nancy, France
[6] Inst Paoli Calmettes, Marseille, France
[7] Univ Hosp Gasthuisberg, Leuven, Belgium
[8] Univ Paris, Hop Europeen Georges Pompidou, AP HP, Dept Gastroenterol & Gastrointestinal Oncol, Paris, France
[9] Hop Haut Leveque, Pessac, France
[10] Hosp Univ Virgen Rocio, Seville, Spain
[11] Hosp Univ Miguel Servet, Zaragoza, Spain
[12] Hosp Univ Ramon y Cajal, Madrid, Spain
[13] Hosp Univ La Paz, Dept Med Oncol, Madrid, Spain
[14] Alligator Biosci AB, Lund, Sweden
[15] Vall Hebron Univ Hosp, Barcelona, Spain
[16] Vall Hebron Inst Oncol, Barcelona, Spain