1. Department of Hematology, Gifu Prefectural Medical Center, Japan
2. First Department of Internal Medicine, Gifu University School of Medicine, Japan
3. Department of Transfusion Medicine, Gifu University School of Medicine, Japan
4. Department of Gastroenterology, Gifu Prefectural Medical Center, Japan
5. Department of Informative Clinical Medicine, Gifu University Graduate School of Medicine, Japan