1 Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
2 Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China. shihp@ccmu.edu.cn.
3 Department of Oncology, Capital Medical University, Beijing, 100038, China. shihp@ccmu.edu.cn.
4 Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition, Beijing, 100038, China. shihp@ccmu.edu.cn.