1. Cellular and Molecular Toxicology Laboratory; Korea Institute of Science & Technology; P.O. Box 131, Cheongryang Seoul 130-650 Korea
2. Department of Preventive Medicine; Korea University, Korea Project for Reducing Light Pollution Effects to Human and Ecosystem; Korea
3. National Center for Efficacy evaluation for Respiratory disease product, Jeonbuk Department of Inhalation Research; Korea Institute of Toxicology; 30 Baehak1-gil Jeongeup Jeollabuk-do 53212 Republic of Korea
4. Department of Pharmacology and Toxicology, Human and Environmental Toxicology; Korea University of Science and Technology; Gajeong-Ro 217, Yuseong-gu Daejeon 305-350 Korea