1. Department of Oncology, The Third Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong 518000, P.R. China
2. Department of Oncology, Lishui Municipal Central Hospital, Lishui, Zhejiang 323000, P.R. China
3. Department of Clinical Medicine, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China