1. Department of Environmental Epidemiology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan , Kitakyushu , Japan
2. Disaster Occupational Health Center, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan , Kitakyushu , Japan
3. Department of Reproductive and Menopausal Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School , Tokushima , Japan
4. Department of Urology, Juntendo University Graduate School of Medicine , Tokyo , Japan