1. Department of Comprehensive Radiotherapy, Jiangxi Cancer Hospital , Nanchang 330029, Jiangxi, P.R. China
2. Department 1 of General Surgery, Jiangxi Gao’an People’s Hospital , Gao’an 330800, Jiangxi, P.R. China
3. Department of Oncology, Jingdezhen Second People’s Hospital , Jingdezhen 333000, Jiangxi, P.R. China
4. Department of Gastroenterology, Jiangxi Cancer Hospital , Nanchang 330029, Jiangxi, P.R. China