[1] Wenzhou Med Univ, Affiliated Hosp 2, Ctr Sci Res, Wenzhou 325027, Zhejiang, Peoples R China
[2] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Dept Pathol, Boston, MA 02115 USA
[3] Wenzhou Med Univ, Affiliated Hosp 2, Dept Obstet & Gynecol, Wenzhou 325027, Zhejiang, Peoples R China
[4] Wenzhou Med Univ, Affiliated Hosp 2, Dept Gastrointestinal Surg, Wenzhou 325027, Zhejiang, Peoples R China