1. Department of Oncology, Affiliated Qingdao Central Hospital of Qingdao University, Qingdao Cancer Hospital, Qingdao 266042, China
2. Department of Oncology, Liaocheng City People’s Hospital, Liaocheng 252004, China
3. Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266003, China