1 Department of Public Health, Shihezi University School of Medicine, Shihezi 832000, Xinjiang, China;College of Public Health, Xinjiang Medical University, Urumqi 830011, Xinjiang, China.
2 Department of Public Health, Shihezi University School of Medicine, Shihezi 832000, Xinjiang, China.
3 College of Public Health, Xinjiang Medical University, Urumqi 830011, Xinjiang, China.