1. Department of General Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
2. Surgical Comprehensive Laboratory, Medical School of Nantong University, Nantong, Jiangsu 226001, P.R. China
3. Department of Pathology, Affiliated Cancer Hospital of Nantong University, Nantong, Jiangsu 226361, P.R. China
4. Department of Surgical Oncology, Lu'an People's Hospital Tumor Center, The Lu'an Affiliated Hospital of Anhui Medical University, Lu'an, Anhui 237000, P.R. China