1. Health Sciences Institute, China Medical University, Shenyang, China
2. Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, China
3. Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
4. Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, China
5. Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
6. Department of Developmental Pediatrics, Shengjing Hospital of China Medical University, China Medical University, Shenyang, China
7. Department of Epidemiology and Health Statistics, School of Public Health, China Medical University, Shenyang, China
8. Liaoning Key Laboratory of Obesity and Glucose/Lipid Associated Metabolic Diseases, Shenyang, China