1. Institute of Public Health Medical Service, Seoul National University Hospital, Seoul, Republic of Korea
2. Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
3. Institute of Environmental Medicine, Seoul National University Medical Research Centre, Seoul, Republic of Korea
4. Environmental Health Centre
5. Department of Paediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea
6. Department of Public Health Medical Services, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
7. Food Safety Risk Assessment Division, National Institute of Food and Drug Safety Evaluation, Cheongwon, Republic of Korea