1. Division of Laboratory and Transfusion Medicine Hokkaido University Hospital Sapporo Japan
2. Diagnostic Center for Sonography Hokkaido University Hospital Sapporo Japan
3. Department of Planning and Management Hokkaido University Hospital Sapporo Japan
4. Department of Gastroenterological Surgery II Hokkaido University Faculty of Medicine Sapporo Japan
5. Department of Urology Ebetsu City Hospital Ebetsu Japan
6. Department of Human Pathology Wakayama Medical University Wakayama Japan
7. Department of Surgical Pathology Ebetsu City Hospital Ebetsu Japan
8. Department of Hematology, Faculty of Medicine and Graduate School of Medicine Hokkaido University Sapporo Japan