[1] Hop Cochin, Gastroenterol & Digest Oncol Dept, Paris, France
[2] Inst Gustave Roussy, Med Oncol Dept, Villejuif, France
[3] Fdn IRCCS Ist Nazl Tumori, Dept Med Oncol, Milan, Italy
[4] VHIO Vall dHebron Inst Oncol, Dept Med Oncol, Barcelona, Spain
[5] Orebro Univ, Fac Med Hlth, Dept Oncol, Orebro, Sweden
[6] Karolinska Inst, Bioclinicum, Oncol Pathol Dept, Solna, Sweden
[7] Univ Libre Bruxelles ULB, Hop Univ Bruxelles HUB, Inst Jules Bordet, Acad Trials Promoting Team ATPT, Brussels, Belgium
[8] Queens Univ, Dept Oncol, Kingston, ON, Canada
[9] IRCCS Ist Candiolo FPO, Invest Clin Oncol Dept, Turin, Italy
[10] ESMO European Soc Med Oncol, Sci & Med Div, Lugano, Switzerland
[11] Inst Gustave Roussy, Breast Oncol Dept, Villejuif, France
[12] UMC Univ Med Ctr Utrecht, Dept Med Oncol, Utrecht, Netherlands