1. Division of Abdominal Tumor Multimodality Treatment, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
2. Department of Health Ward, The Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou 510095, China
3. Department of Radiation Oncology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, China