1. Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi’an Jiaotong University, Xi’an, China
2. Department of Orthopedics, the Second Affiliated Hospital, Health Science Center, Xi’an Jiaotong University, Xi’an, China
3. Institute of Ageing and Chronic Diseases, University of Liverpool, Liverpool, UK
4. Cancer Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
5. Department of Joint Surgery, The Red Cross Hospital of Xi’an Jiaotong University, Xi’an, China
6. Hospital for Special Surgery, Weill College of Medicine of Cornell University, New York, NY, USA