1. Department of Anatomy & Neurobiology,Kyoto Prefectural University of Medicine,Kawaramachi-Hirokoji,Kamigyo-ku,Kyoto 602-0841
2. Department of Anatomy,Osaka Dental University,8-1 Kuzuhahanazono-cho,Hirakata-shi,Osaka 573-1121
3. Laboratory of Neurochemistry,Faculty of Integrated Human Studies,Kyoto University,Sakyo-ku,Kyoto 606-8501