1. Department of Medical Informatics Kagawa University Hospital Kagawa Japan
2. Office of Medical Informatics and Epidemiology, Pharmaceutical and Medical Devices Agency Tokyo Japan
3. Department of Medical Informatics & Management Chiba University Hospital Chiba Japan
4. Neurological Surgery Chiba University Hospital Chiba Japan
5. Tokushukai General Incorporated Association Osaka Headquarters Osaka Japan
6. Department of Neurological Surgery Kagawa University Hospital Kagawa Japan
7. Medical Informatics Center Tohoku University Hospital Miyagi Japan
8. Department of Medical Informatics Tohoku University School of Medicine Miyagi Japan