1. School of Public Health Health Science Center of Xi’an Jiaotong UniversityChina
2. Key Laboratory of Trace Elements and Endemic Diseases National Health Commission of the People’s Republic of China Xi’an China
3. Department of Foot and Ankle Surgery Hong Hui Hospital of Xi’an Jiaotong University China
4. Department of Joint Surgery Hong Hui Hospital of Xi’an Jiaotong University China
5. Department of Odontology Umeå University Sweden
6. Department of Integrative Medical Biology Umeå University Sweden