1. Department of Child and Adolescent Psychiatry, Eulji General Hospital, School of Medicine, Eulji University, Seoul, Korea.
2. Department of Occupational and Environmental Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.
3. Medical Research Institute, Ewha Global Challenge Center, Ewha Womans University, Seoul, Korea.
4. Department of Preventive Medicine, School of Medicine, Ewha Womans University, Seoul, Korea.
5. Department of Preventive Medicine, College of Medicine, Dankook University, Cheonan, Korea.
6. Institute of Environmental Medicine, Medical Research Center, Seoul National University, Seoul, Korea.
7. Division of Child & Adolescent Psychiatry, Department of Psychiatry and Institute of Human Behavioral Medicine, College of Medicine, Seoul National University, Seoul, Korea.
8. Department of Obstetrics and Gynecology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
9. Department of Pediatrics, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
10. Department of Laboratory Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
11. Department of Occupational and Environmental Medicine, College of Medicine, Dongguk University, Dongguk University Ilsan Hospital, Goyang, Korea.
12. Environmental Health Research Division, National Institute of Environmental Research, Incheon, Korea.
13. Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.