1. Department of Neurosurgery, International University of Health and Welfare, School of Medicine
2. Department of Stereotactic and Functional Neurosurgery, Fukuoka Mirai Hospital
3. Department of Neurosurgery, Faculty of Medicine, Kyushu University
4. Department of Anatomy and Physiology, Faculty of Medicine, Saga University
5. Faculty of Arts and Science, Kyushu University