1. Department of Pathology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
2. General Surgery Department, Second Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
3. Department of Pathology, Xiangya Changde Hospital, Changde 415000, Hunan, China
4. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
5. Department of Orthopedic Surgery, The Second Hospital University of South China, Hengyang 421001, Hunan, China
6. Department of Emergency, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
7. Department of Emergency, Xiangya Changde Hospital, Changde 415000, Hunan, China
8. Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China