1. Department of Clinical Epidemiology Shengjing Hospital of China Medical University Shenyang China
2. Department of Pediatrics Shengjing Hospital of China Medical University Shenyang China
3. Department of Ophthalmology Shenyang Women's and Children's Hospital Shenyang China
4. Department of Science and Education Shenyang Maternity and Child Health Hospital Shenyang China
5. Department of Atmospheric Environment Monitoring Liaoning Eco‐environmental Monitoring Center Shenyang China
6. Liaoning Women and Children's Health Hospital Shenyang China
7. Department of Children's Health Prevention Shenyang Maternity and Child Health Hospital Shenyang China
8. School of Environmental and Chemical Engineering Shenyang Ligong University Shenyang China