1. Department of Medical Oncology, The Forth Hospital of Hebei Medical University, Shijiazhuang 050000, China
2. Department of Medical Oncology, Hebei Cangzhou People’s Hospital, Cangzhou 061001, China
3. Graduate School, Chengde Medical University and Cangzhou People’s Hospital, Cangzhou 061001, China
4. Department of Pathology, Hebei Cangzhou People’s Hospital, Cangzhou 061001, China
5. Department of Medicine, Cangzhou Medical College, Cangzhou 061011, China