Published on in Vol 25 (2023)
1 Department of Clinical Nutrition, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
2 Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
3 Department of General Surgery, Beijing Hospital, National Center of Gerontology, Beijing, China
4 Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
5 Department of Gastrointestinal Surgery, Beijing Hospital, National Center of Gerontology, Beijing, China
*these authors contributed equally