1. Department of Dermatology, Hunan Key Laboratory of Skin Cancer and Psoriasis; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China
2. Department of Spine Surgery, the Xiangya Hospital, Central South University, Changsha, Hunan, China
3. National Clinical Research Center for Geriatric Disorders of Xiangya hospital, Central South University (Sub-center of Ningxia), Yinchuan, Ningxia Hui Autonomous Region 750001, China
4. Ningxia Geriatric Disease Clinical Research Center, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, Ningxia Hui Autonomous Region 750001, China
5. Hunan People's Hospital, Geriatrics Institute of Hunan Province, Changsha, China, Changsha 410002, China
6. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China