[1] Natl Canc Ctr Hosp East, Dept Gastroenterol & Endoscopy, Kashiwa, Japan
[2] Gifu Univ, Grad Sch Med, Dept Gastroenterol Surg & Pediat Surg, Gifu, Japan
[3] Kanagawa Canc Ctr, Dept Gastroenterol Surg, Yokohama, Japan
[4] Natl Hosp Org Osaka Natl Hosp, Dept Surg, Osaka, Japan
[5] Kyushu Univ Hosp, Grad Sch Med Sci, Dept Surg & Sci, Fukuoka, Japan
[6] Osaka Med & Pharmaceut Univ Hosp, Canc Chemotherapy Ctr, Takatsuki, Japan
[7] Osaka Gen Med Ctr, Dept Gastroenterol Surg, Osaka, Japan
[8] Shimane Prefectural Cent Hosp, Dept Surg, Izumo, Japan
[9] Kansai Rosai Hosp, Dept Clin Oncol, Amagasaki, Japan
[10] Aichi Canc Ctr Hosp, Dept Gastroenterol Surg, Nagoya, Aichi, Japan
[11] Natl Canc Ctr Hosp East, Dept Gastroenterol & Gastrointestinal Oncol, Kashiwa, Japan
[12] Natl Canc Ctr Hosp East, Translat Res Support Off, Tokyo, Japan
[13] Guardant Hlth, Redwood City, CA USA