Author(s) affiliations:Rui Liu1, Jin Zhao2, Ke He3, Xiaodong Zhang2, Liang Chang4, Guoan Xiang3
1 Department of General Surgery, The Third Clinical College, Southern Medical University, The Second People's Hospital of Guangdong Province, Guangzhou 510515, Guangdong; Departments of General Surgery, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, Inner Mongolia, China
2 Department of General Surgery, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, Inner Mongolia, China
3 Department of General Surgery, The Third Clinical College, Southern Medical University, The Second People's Hospital of Guangdong Province, Guangzhou 510515, Guangdong, China
4 Department of Surgical Oncology, The Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014010, Inner Mongolia, China