[1] Anhui Med Univ, Affiliated Hosp 1, Dept Gen Surg, Hefei, Peoples R China
[2] Xuzhou Med Univ, Inst Canc, Jiangsu Key Lab Biol Canc, Xuzhou, Jiangsu, Peoples R China
[3] Anhui Med Univ, Dept Oncol, Hefei, Peoples R China
[4] Zhejiang Univ, Dept Infect Dis, Hangzhou, Peoples R China
[5] First Peoples Hosp Xiaoshan Dist, Dept Gen Surg, Hangzhou, Peoples R China