Nanjing, China
Author Affiliations: Research Institute of General Surgery, Nanjing General Hospital of Nanjing Military Command, PLA, Nanjing 210002, China (Li N)
Corresponding Author: Ning Li, MD, Research Institute of General Surgery, Nanjing General Hospital of Nanjing Military Command, PLA, Nanjing 210002, China (Tel: 86-25-80860089; Email: liningrigs@vip.sina.com) |