[1] Univ Hosp Southampton NHS Fdn Trust, Southampton, Hants, England
[2] IRCCS Osped San Martino IST, Genoa, Italy
[3] Natl Canc Ctr Hosp East, Kashiwa, Chiba, Japan
[4] Univ Heraklion, Iraklion, Greece
[5] Mayo Clin, Rochester, MN USA
[6] Mayo Clin, Alliance Stat & Data Ctr, Rochester, MN USA
[7] Mayo Clin, Dept Hlth Sci Res, Rochester, MN USA
[8] Christie NHS Fdn Trust, Manchester, Lancs, England
[9] Osped Papa Giovanni XXIII, Bergamo, Italy
[10] Yokohama City Univ, Sch Med, Yokohama, Kanagawa, Japan
[11] Bioclin Thessaloniki Med Oncol Unit, Athens, Greece
[12] Sygehus Syd Naestved, Naestved, Denmark
[13] IRCCS Ist Ric Farmacol Mario Negri, Milan, Italy
[14] Shizuoka Canc Ctr, Div Gastrointestinal Oncol, Shizuoka, Japan
[15] Univ Crete, Tumor Cell Biol Lab, Sch Med, Athens, AZ, Greece
[16] Ist Oncol Veneto IRCCS, Padua, Italy
[17] CRUK, Glasgow, Lanark, Scotland
[18] San Carlo Hosp, Med Oncol Unit, Potenza, Italy
[19] Univ Glasgow, Canc Res UK Clin Trials Unit, Inst Canc Res, Glasgow, Lanark, Scotland