1. General Surgery Department, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
2. General Surgery Department FIVE, People’s Hospital of Xiangxi Tujia and Miao Autonomous Prefecture, Jishou, Hunan 416000, China
3. Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410000, China
4. General Surgery Department, Changsha Central Hospital, Nanhua University, Changsha, Hunan 410000, China