1. Department of Public Health, Graduate School, Korea University, 73 Goryeodae-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
2. Institute for Environmental Health, Korea University, 73 Goryeodae-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
3. Department of Preventive Medicine, College of Medicine, Korea University, 73 Goryeodae-ro, Seong-buk-gu, Seoul 02841, Republic of Korea