[1] Int Med Ctr Japan, Shinjuku Ku, Tokyo 1628655, Japan
[2] Kyushu Univ, Med Inst Bioregulat, Dept Mol Genet, Div Mol Populat Genet, Fukuoka 812, Japan
[3] Kyushu Univ, COE Program Lifestyle Related Dis, Fukuoka 812, Japan
[4] Aichi Canc Ctr Hosp, Dept Surg Gastroenterol, Nagoya, Aichi 464, Japan
[5] Kyushu Univ, Grad Sch Med Sci, Dept Surg & Oncol, Fukuoka 812, Japan
[6] Natl Canc Ctr, Res Inst, Div Biol, Tokyo 104, Japan
[7] Sapporo Med Univ, Sch Med, Canc Res Inst, Dept Biol Mol, Sapporo, Hokkaido, Japan
[8] Canc Inst Hosp, Dept GI Surg, Tokyo, Japan
[9] Kanazawa Univ, Grad Sch Med Sci, Div Canc Med, Dept Oncol, Kanazawa, Ishikawa 920, Japan
[10] Nagoya Univ, Grad Sch Med, Nagoya, Aichi, Japan
[11] Keio Univ, Sch Med, Dept Surg, Tokyo 160, Japan
[12] Kumamoto Univ, Sch Med, Dept Surg 2, Kumamoto 860, Japan
[13] Tohoku Univ, Sch Med, Dept Surg 1, Sendai, Miyagi 980, Japan
[14] Osaka Univ, Grad Sch Med, Dept Surg & Clin Oncol, Osaka, Japan
[15] Osaka Med Ctr Canc & Cardiovasc Dis, Dept Surg, Osaka, Japan
[16] Hamamatsu Univ Sch Med, Dept Pathol, Hamamatsu, Shizuoka 43131, Japan
[17] St Marianna Univ, Sch Med, Dept Internal Med, Kawasaki, Kanagawa, Japan
[18] Kanazawa Univ, Canc Res Inst, Div Diagnost Mol Oncol & Surg Oncol, Kanazawa, Ishikawa 920, Japan
[19] Kyushu Univ, Grad Sch Med Sci, Dept Surg & Sci, Fukuoka 812, Japan
[20] Fukushima Med Univ, Dept Surg 2, Fukushima, Japan
[21] Kagoshima Univ, Sch Med, Dept Surg 1, Kagoshima 890, Japan
[22] Natl Canc Ctr, Tokyo, Japan
[23] Natl Canc Ctr, Res Inst, Canc Informat & Epidemiol Div, Tokyo 104, Japan
[24] Tokyo Metropolitan Komagome Hosp, Tokyo, Japan
[25] Saitama Canc Ctr, Res Inst, Saitama, Japan
[26] Kanagawa Canc Ctr, Dept Gastrointestinal Surg, Yokohama, Kanagawa, Japan