1. Department of Surgery and Anesthesia, The Third Affiliated Hospital of Sun Yat‑sen University, Yuedong Hospital, Meizhou, Guangdong 514700, P.R. China
2. Department of Medical Oncology, The Third Affiliated Hospital of Sun Yat‑sen University, Yuedong Hospital, Meizhou, Guangdong 514700, P.R. China