1. Department of General Surgery Beijing Hospital Beijing China
2. Department of Parenteral and Enteral Nutrition Beijing Union Hospital Beijing China
3. Institute of Emergency and Disaster Medicine Sichuan Provincial People’s Hospital Chengdu China
4. Department of Geriatrics Sichuan University West China Hospital Chengdu China
5. Department of Neurology the Second Affiliated Hospital of Zhejiang University school of medicine Hangzhou China
6. Department of Cardiovascular medicine Beijing Hospital Beijing China
7. Department of General Surgery Chinese PLA General Hospital Beijing China
8. Department of Geriatrics Zhongshan Hospital Fudan University Shanghai China
9. Department of Nutrition Huadong Hospital Affiliated to Fudan University Shanghai China
10. Department of General Surgery Tianjin Hospital of ITCWM Tianjin China
11. Department of Clinical Nutrition Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine Shanghai China
12. Department of Geriatrics Intensive Care Unit Nanjing Medical University First Affiliated Hospital Nanjing China
13. Department of clinical Nutrition Shanghai Jiao Tong University Medical School Affiliated Ruijin Hospital Shanghai China