1. Hengyang Medical School, University of South China, Hengyang 421001, China
2. Trauma Center, Hengyang Medical School, The Second Affiliated Hospital, University of South China, Hengyang 421001, Hunan Province, China
3. Department of Rehabilitation Medicine, Xiangya Hospital, Central South University, Changsha 4140000, China
4. National Clinical Research Center for Geriatric Diseases, Changsha 4140000, China
5. Center for Experimental Medical Research, Third Xiangya Hospital, Central South University, Changsha 410013, China
6. Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, China