1. Department of Maternal, Child and Adolescent Health, Anhui Medical University, Hefei, China
2. Anhui Provincial Key Laboratory of Population Health & Aristogenics, Anhui Medical University, Hefei, China
3. Ma’anshan Maternity and Child Health Care Hospital, Ma’anshan, China
4. School of Public Health and Social Work and Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Australia