1. Medical Psychology Department, Peking University Health Science Center, Beijing 100191, China
2. Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
3. Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
4. Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China