1. West China School of Public Health and West China Fourth Hospital Sichuan University Chengdu China
2. Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education West China Second University HospitalSichuan University Chengdu China
3. Nutrition, Consumption and Health Faculty of Natural Sciences University Paderborn Paderborn Germany
4. Laboratory of Molecular Translational Medicine Centre for Translational Medicine Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education West China Second University HospitalSichuan University Chengdu China
5. Department of Clinical Nutrition Affiliated Hospital of Guizhou Medical UniversityGuizhou Medical University Guiyang China
6. College of Public Health Hebei University Baoding China
7. Sichuan Provincial Centre for Disease Control and Prevention Chengdu China