[1] Nagoya Univ, Grad Sch Med, Div Surg Oncol, Showa Ku, Nagoya, Aichi 4668550, Japan
[2] Nagoya Univ, Grad Sch Med, Dept Mol Pathogenesis, Showa Ku, Nagoya, Aichi 4668550, Japan
[3] Nagoya Univ, Grad Sch Med, Dept In Home Med, Showa Ku, Nagoya, Aichi 4668550, Japan
[4] Nagoya Univ, Grad Sch Med, Dept Prevent Med Biostat & Med Decis Making, Showa Ku, Nagoya, Aichi 4668550, Japan
[5] Kanazawa Univ, Grad Sch Med, Dept Human Pathol, Kanazawa, Ishikawa 9208641, Japan
[6] Chang Gumg Univ, Chang Gung Mem Hosp, Dept Surg, Taipei 105, Taiwan
[7] Chang Gumg Univ, Chang Gung Mem Hosp, Dept Gastroenterol, Taipei 105, Taiwan
[8] Chang Gumg Univ, Chang Gung Mem Hosp, Dept Publ Hlth, Taipei 105, Taiwan