[1] Weill Cornell Med Coll, Mem Sloan Kettering Canc Ctr, New York, NY USA
[2] Kyorin Univ, Dept Med Oncol, Fac Med, Mitaka, Tokyo, Japan
[3] Taipei Vet Gen Hosp, Div Gastroenterol, Dept Med, Taipei, Taiwan
[4] Seoul Natl Univ, Seoul Natl Univ Hosp, Canc Res Inst, Dept Internal Med,Coll Med, Seoul, South Korea
[5] 12 Octubre Univ Hosp, Madrid, Spain
[6] Univ Hosp Grenoble, Hepato Gastroenterol Dept, Grenoble, France
[7] Astellas Pharma Inc, Northbrook, IL USA
[8] Astellas Pharma Inc, Tokyo, Japan