1. Department of Clinical Nutrition, Department of Health Medicine Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
2. Department of Clinical Nutrition, Guangzhou Institute of Disease‐Oriented Nutritional Research Guangzhou Red Cross Hospital of Jinan University Guangzhou China
3. Department of Clinical Nutrition The First Affiliated Hospital of China Medical University Shenyang China
4. Division of Nutrition, National Clinical Research Center for Aging and Medicine, Huashan Hospital, Shanghai Medical College Fudan University Shanghai China
5. Clinical Nutrition Department Sixth People's Hospital Affiliated Shanghai Jiaotong University Shanghai China
6. Clinical Nutrition Department Sichuan University West China Hospital Chengdu China
7. Department of Nutrition The Affiliated Hospital of Qingdao University Qingdao China
8. Department of General Surgery, Department of Gastrointestinal Surgery Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences Beijing China