1. School of Public Health, Xi’an Jiaotong University Health Science Center, Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, Xi’an, China
2. School of Nursing, Health Science Center, Xi’an Jiaotong University, Xi’an, China
3. Lanzhou Center for Disease Control and Prevention, Lanzhou, China
4. Key Laboratory of Shaanxi Province for Craniofacial Precision Medical Research, College of Stomatology, Xi’an Jiaotong University, Xi’an, China
5. State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China