1. Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka 812-8582, Japan
2. Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Japan
3. Department of Medical Informatics, Kyushu University Hospital, Japan
4. Research Institute for Diseases of the Chest, Kyushu University Hospital, Japan
5. Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan