Affiliation: | 1.Bioscience Research Laboratory, Sumitomo Chemical Co., Ltd., 3–1–98 Kasugadenaka, Konohana-ku, Osaka 554–8558, Japan;2.Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., 4–2–1 Takatsukasa, Takarazuka, Hyogo 665–8555, Japan |