1. Department of Environmental Health, Korea National Open University, Seoul, Korea.
2. Department of Anthropology, Johns Hopkins University, Baltimore, MD, USA.
3. Department of Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
4. Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea.
5. Chemical Safety Management Department, Nakdong River Basin Environmental Office, Ministry of Environment, Changwon, Korea.
6. Graduate School of Public Health and Healthcare Management, The Catholic University of Korea, Seoul, Korea.
7. National Cancer Control Institute, National Cancer Center, Goyang, Korea.
8. Department of Pediatrics, Childhood Asthma and Atopy Center, Humidifier Disinfectant Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.