Institution: | a Cosmo Oil Co. Ltd., Tokyo 105-8528, Japan b Dioxin Research Group, Saitama Institute of Public Health, Saitama 338-0824, Japan c Department of Entomology and the UCD Cancer Center, University of California, Davis, CA 95616, USA d Department of Analytical Chemistry, Hoshi University, Tokyo 142-8501, Japan e Food and Drug Safety Center, Hatano Research Institute, Kanagawa 257-8523, Japan |