[1] Univ Tokyo, Fac Med, Dept Surg Oncol, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138655, Japan
[2] Japanese Soc Canc Colon & Rectum, Comm Hereditary Colorectal Canc, Tokyo, Japan
[3] Tokyo Metropolitan Canc & Infect Dis Ctr Komagome, Dept Surg, Tokyo, Japan
[4] Saitama Med Univ, Saitama Med Ctr, Dept Digest Tract & Gen Surg, Saitama, Japan
[5] Osaka Int Canc Inst, Dept Gastrointestinal Oncol, Osaka, Japan
[6] Osaka Int Canc Inst, Dept Genet Oncol, Div Hereditary Tumors, Osaka, Japan
[7] Osaka Int Canc Inst, Dept Gastrointestinal Oncol, Osaka, Japan
[8] Canc Inst Hosp Japanese Fdn Canc Res, Dept Gastroenterol, Tokyo, Japan
[9] Kurume Univ, Sch Med, Dept Surg, Kurume, Japan
[10] Hyogo Coll Med, Dept Surg, Hyogo, Japan
[11] Jichi Med Univ, Saitama Med Ctr, Dept Surg, Saitama, Japan
[12] Natl Hosp Org Iwakuni Clin Ctr, Dept Surg, Yamaguchi, Japan
[13] Tokyo Metropolitan Canc & Infect Dis Ctr Komagome, Dept Clin Genet, Tokyo, Japan
[14] Toyonaka City Hosp, Dept Surg, Toyonaka, Japan
[15] Niigata Univ, Grad Sch Med & Dent Sci, Div Mol & Diagnost Pathol, Niigata, Japan