1. School of Public Health, Hebei Medical University, Shijiazhuang, 050017, China
2. Jinan Centre for Disease Control and Prevention, Jinan, 250000, China
3. Department of Reproductive Genetic Family, Hebei General Hospital, Shijiazhuang, Hebei, 050000, China
4. Physical Education Department, Hebei Medical University, Shijiazhuang, 050017, China
5. Shijiazhuang Centre for Disease Control and Prevention, Shijiazhuang, 050011, China
6. Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, 050017, China