[1] Kumamoto Univ, Grad Sch Med Sci, Dept Pediat Surg & Transplantat, Kumamoto, Japan
[2] Tochigi Canc Ctr, Dept Hepatobiliary Pancreat & Gastrointestinal Sur, Utsunomiya, Tochigi, Japan
[3] Kumamoto Univ, Grad Sch Med Sci, Dept Gastroenterol, Kumamoto, Japan
[4] Kumamoto Univ, Grad Sch Med Sci, Dept Anesthesiol, Kumamoto, Japan
[5] Kumamoto Univ, Kumamoto Univ Hosp, Transplantat Ctr, Grad Sch Med Sci,Dept Pediat Surg & Transplantat, 1-1-1 Honjo,Chuo ku, Kumamoto 8608556, Japan