[1] Chiba Univ, Grad Sch Med, Dept Mol Diagnosis, Chuo Ku, Chiba 2608670, Japan
[2] Kitasato Univ, Sch Sci, Dept Phys, Lab Biomol Dynam, Kanagawa, Japan
[3] Chiba Univ, Grad Sch Med, Dept Gen Surg, Chiba 2608670, Japan
[4] Tokyo Womens Med Univ, Inst Gastroenterol, Dept Surg, Tokyo, Japan
[5] Chiba Med Ctr, Natl Hosp Org, Div Clin Invest, Chiba, Japan