1. Department of Neuropathology Institute of Brain Science, Hirosaki University Graduate School of Medicine Hirosaki Japan
2. Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Hirosaki Japan
3. Department of Anatomic Pathology Hirosaki University Graduate School of Medicine Hirosaki Japan
4. Department of Radiation Hirosaki University Graduate School of Medicine Hirosaki Japan
5. Department of Bioscience and Laboratory Medicine Hirosaki University Graduate School of Health Sciences Hirosaki Japan