Affiliation: | Department of Anatomy, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634, Japan;Radioisotope Center, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634, Japan;Department of Biology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634, Japan;Department of Radiation Biology, Faculty of Medicine, Osaka University, Yamada-oka2–2, Suita, Osaka 565, Japan |