1. School of Public Health, Xi’an Medical University , Xi’an , China
2. People’s Hospital of Shaanxi province , Xi’an , China
3. Office of Graduate Student Affairs, Xi’an Medical University , Xi’an , China
4. Xi’an Gem Flower Chang Qing Hospital , Xi’an , China
5. Department of Basic Medicine, Xi’an Medical University , Xi’an , China
6. Institute of Health Sciences, China Medical University , Shenyang , China
7. Wuxi School of Medicine, Jiangnan University , Wuxi , China
8. Academy of life sciences, northwestern polytechnical university , Xi’an , China
9. Department of Gerontology, The Second Affiliated Hospital of Xi’an Jiaotong University , Xi’an , China
10. The second clinical medical school of Xi’an Medical University , Xi’an , China
11. The First Affiliated Hospital of Xi’an Medical University , Xi’an , China