[1] Mie Univ, Grad Sch Med, Dept Gastrointestinal & Pediat Surg, Div Reparat Med,Inst Life Sci, Tsu, Mie 5148507, Japan
[2] Hyogo Coll Med, Dept Lower Gastroenterol Surg, Nishinomiya, Hyogo 6638501, Japan
[3] Hyogo Coll Med, Ctr Inflammatory Bowel Dis, Nishinomiya, Hyogo 6638501, Japan
[4] Tohoku Univ, Dept Surg, Grad Sch Med, Sendai, Miyagi 980, Japan
[5] Tohoku Rosai Hosp, Dept Colorectal Surg, Sendai, Miyagi, Japan
[6] Tohoku Univ, Grad Sch Med, Div Mol & Surg Pathophysiol, Sendai, Miyagi 980, Japan
[7] Fukuoka Univ, Chikushi Hosp, Dept Surg, Chikushino, Japan
[8] Osaka City Univ, Dept Surg Oncol, Grad Sch Med, Osaka 558, Japan
[9] Niigata Univ, Grad Sch Med & Dent Sci, Div Digest & Gen Surg, Niigata, Japan
[10] Tokyo Womens Med Univ, Dept Surg 2, Tokyo, Japan
[11] Natl Def Med Coll, Dept Surg, Tokorozawa, Saitama 359, Japan
[12] Sapporo Kosei Gen Hosp, IBD Ctr, Sapporo, Hokkaido, Japan
[13] Wakakusa First Hosp, Dept Gastroenterol, Osaka, Japan
[14] Osaka Univ, Dept Surg, Grad Sch Med, Suita, Osaka, Japan
[15] Fujita Hlth Univ, Sch Med, Dept Surg, Toyoake, Aichi 47011, Japan
[16] Mie Univ, Grad Sch Med, Dept Innovat Surg & Surg Tech Dev, Tsu, Mie 5148507, Japan