[1] Shizuoka Canc Ctr, Div Gastrointestinal Oncol, Shizuoka, Japan
[2] Natl Canc Ctr Hosp East, Dept Data Sci, Kashiwa, Chiba, Japan
[3] Natl Canc Ctr Hosp East, Dept Gastroenterol & Gastrointestinal Oncol, Kashiwa, Chiba, Japan
[4] Kyushu Univ, Grad Sch Med Sci, Dept Surg & Sci, Fukuoka, Japan
[5] Univ Nantes, Med Sch Nantes, Nantes, France
[6] Univ Med Ctr Utrecht, Utrecht, Netherlands
[7] Univ Hosp Gasthuisberg Leuven, Dept Gastroenterol Digest Oncol, Leuven, Belgium
[8] Katholieke Univ Leuven, Leuven, Belgium
[9] Univ Med Ctr Hamburg Eppendorf, Dept Oncol Hematol, Hamburg, Germany
[10] Univ Med Ctr Hamburg Eppendorf, Bone Marrow Transplantat Sect Pneumol, Hamburg, Germany
[11] Univ Calif San Francisco, Dept Med, San Francisco, CA USA
[12] Kyushu Cent Hosp, Mutual Aid Assoc Publ Sch, Fukuoka, Japan
[13] Ludwig Maximilians Univ Munchen, Univ Hosp, Dept Med 3, Munich, Germany
[14] Univ Hosp Pisa, Dept Oncol, Pisa, Italy
[15] Nagoya Univ, Dept Surg Gastroenterol, Grad Sch Med, Nagoya, Aichi, Japan
[16] Hop St Antoine, Paris, France
[17] Mayo Clin, Dept Quantitat Sci Res, Rochester, MN USA
[18] Franco British Hosp, Dept Med Oncol, Levallois Perret, France