1. Department of Neurosurgery, Yamagata University Faculty of Medicine
2. Department of Neurosurgery, Yamagata City Hospital Saiseikan
3. Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine
4. Department of Neurology, Hematology, Metabolism, Endocrinology and Diabetology, Yamagata University Faculty of Medicine
5. Advanced Cancer Science, Yamagata University Faculty of Medicine