[1] Kunming Med Univ, Tumor Hosp Yunnan Prov, Colorectal Surg, Affiliated Hosp 3, Kunming 650118, Yunnan, Peoples R China
[2] Taikang Tongji Wuhan Hosp, Oncol, Wuhan 430051, Hubei, Peoples R China
[3] Second Mil Med Univ, Eastern Hepatobiliary Surg Hosp, Mol Oncol Lab, Shanghai 200438, Peoples R China