1. Department of Preventive Medicine, Seoul National University College of Medicine, Korea.
2. Department of Social and Preventive Medicine, Sungkyunkwan University School of Medicine, Korea.
3. Department of Preventive Medicine, Dankook University College of Medicine, Korea.
4. Department of Preventive Medicine, Ewha Womans University Medical School, Korea.
5. Citizen's Institute for Environmental Studies, Korean Federation for Environmental Movement, Korea.
6. Taean Institute of Environmental Health, Korea.