1. Division of Integrated Autonomic Function, Department of Physiology; Kurume University School of Medicine; Kurume Japan
2. Department of Cell Physiology; Nagoya City University Graduate School of Medical Sciences; Nagoya Japan
3. Department of Urology; Kurume University School of Medicine; Kurume Japan
4. Electron Microscopic Laboratory; Central Research Unit of Kurume University School of Medicine; Kurume Japan
5. Division of Microscopic and Developmental Anatomy, Department of Anatomy; Kurume University School of Medicine; Kurume Japan