1. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
2. Mobile Health Ministry of Education—China Mobile Joint Laboratory, Xiangya Hospital, Central South University, Changsha, China
3. Department of Pathogen Biology, School of Basic Medical Sciences, Central South University, Changsha, China
4. Department of Neurology, Liaocheng Dongchangfu People's Hospital, Liaocheng, China
5. Department of Orthopaedics, Xiangya Second Hospital, Central South University, Changsha, China
6. Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China
7. Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, China