[1] Kanagawa Canc Ctr, Hepatobiliary & Pancreat Med Oncol Div, Dept Gastroenterol, Yokohama, Kanagawa, Japan
[2] Natl Canc Ctr, Dept Hepatobiliary & Pancreat Oncol, Tokyo, Japan
[3] Hokkaido Univ Hosp, Canc Ctr, Sapporo, Hokkaido, Japan
[4] Natl Canc Ctr Hosp East, Dept Hepatobiliary & Pancreat Oncol, Kashiwa, Chiba, Japan
[5] Kyorin Univ, Med Oncol, Fac Med, Mitaka, Tokyo, Japan
[6] Saitama Canc Ctr, Dept Gastroenterol, Saitama, Japan
[7] Chiba Canc Ctr, Dept Gastroenterol, Chiba, Japan
[8] St Marianna Univ, Dept Clin Oncol, Sch Med, Kawasaki, Kanagawa, Japan
[9] Kansai Rosai Hosp, Dept Surg, Amagasaki, Hyogo, Japan
[10] Osaka Univ, Dept Frontier Sci Canc & Chemotherapy, Grad Sch Med, Suita, Osaka, Japan
[11] Aichi Canc Ctr Hosp, Dept Gastroenterol, Nagoya, Aichi, Japan
[12] Kanazawa Univ, Canc Ctr, Kanazawa, Ishikawa, Japan
[13] Kyushu Univ, Grad Sch Med Sci, Dept Surg & Sci, Fukuoka, Japan
[14] Natl Hosp Org, Clin Res Ctr, Shikoku Canc Ctr, Matsuyama, Ehime, Japan
[15] Natl Canc Ctr Hosp East, Translat Res Management Div, Biobank Translat Res Support Sect, Clin Res Support Off, Chiba, Japan
[16] Natl Canc Ctr Hosp East, Clin Res Support Off, Kashiwa, Chiba, Japan
[17] Natl Canc Ctr, Pathol Exploratory Oncol Res & Clin Trial Ctr, Kashiwa, Chiba, Japan
[18] Natl Canc Ctr Hosp East, Dept Gastrointestinal Oncol, Kashiwa, Chiba, Japan
[19] Natl Canc Ctr Hosp East, Gastroenterol & Gastrointestinal Oncol, Kashiwa, Chiba, Japan