○Tomoko Kobayashi¹, Shigeki Kato¹, Masateru Sugawara¹, Tatsuhiko Ozawa², Ken-ichi Inoue³, Masahiko Takada³, Masanori Onda⁴, Kazuto Kobayashi¹ (1. Sch Med, Fukushima Medical University, 2. Fuc Med, University of Toyama, Toyama, Japan, 3. Center Evolutionary Origins Human Behav, Kyoto University, 4. National Cancer Inst, National Institutes of Health)