| Authors: |
Han Z; Department of General Surgery, Department of Hepato-bilio-pancreatic Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.; Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100730, China., Tan W; Department of General Surgery, Department of Hepato-bilio-pancreatic Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.; Peking University Fifth School of Clinical Medicine, NO.1 Da Hua Road, Dong Dan, Beijing, 100730, P. R. China., Xing C; Department of General Surgery, Department of Hepato-bilio-pancreatic Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China., Ge Y; Department of General Surgery, Department of Hepato-bilio-pancreatic Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China., Guo S; Department of General Surgery, Department of Hepato-bilio-pancreatic Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.; Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100730, China., Zhong H; Department of Gastrointestinal Surgery, The Affiliated Hospital of Qingdao, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China., Zheng Y; Department of General Surgery, Department of Hepato-bilio-pancreatic Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.; Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100730, China., Zhou Y; Department of Gastrointestinal Surgery, The Affiliated Hospital of Qingdao, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China. zhouyanbing@qduhospital.cn., Song J; Department of General Surgery, Department of Hepato-bilio-pancreatic Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China. jhaisong2003@126.com. |