1. Department of Orthopedics
2. Tibet Autonomous Region People’s Hospital, Lhasa, Tibet, People’s Republic of China
3. Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education
4. Health Management Center, Xiangya Hospital
5. Department of Epidemiology and Health Statistics, School of Public Health, Central South University
6. Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, Hunan
7. China Standard Medical Information Research Center, Shenzhen
8. Clinical Trial Unit, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong
9. National Clinical Research Center for Geriatric Disorders