1. Department of Hematology, Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital, Hiroshima, Japan,
2. Department of Pathology and Oncology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan,
3. Department of Molecular Hematopathology, Okayama University Graduate School of Health Sciences, Okayama, Japan,
4. Department of Medicine, University of Hawai’i, Honolulu, HI, USA,
5. Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan