1. Division of Hematology and Oncology, Shiga General Hospital, Moriyama, Japan,
2. Division of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan,
3. Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan,
4. Department of Neurology, Kyoto University, Kyoto Graduate School of Medicine, Kyoto, Japan,
5. Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan,
6. Department of Hematology, Uji Tokushukai Medical Center, Uji, Japan