1. Center for Biotechnology; Showa University; Shinagawa-ku; Tokyo; Japan
2. Department of Physiology; Showa University School of Medicine; Shinagawa-ku; Tokyo; Japan
3. Laboratory of Molecular Neuropharmacology; Graduate School of Pharmaceutical Sciences; Osaka University; Suita-shi; Osaka; Japan
4. Department of Anatomy; Showa University School of Medicine; Shinagawa-ku; Tokyo; Japan