1. Division of Endocrinology, Diabetes and Metabolism, Hematology, Rheumatology (Second Department of Internal Medicine), Graduate School of Medicine, University of the Ryukyus, Nishihara, Japan;
2. Department of Hematology, Fujita Health University School of Medicine, Toyoake, Japan;
3. Division of Basic Medical Science and Molecular Medicine, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Japan;
4. Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan;
5. Japanese Red Cross Kanto-Koshinetsu Block Blood Center, Tokyo, Japan;
6. Japanese Red Cross Central Blood Institute, Tokyo, Japan;
7. Department of Cell Transplantation and Regenerative Medicine, Tokai University School of Medicine, Isehara, Japan;
8. Department of Promotion for Blood and Marrow Transplantation, Aichi Medical University School of Medicine, Nagakute, Japan;
9. Institute for Advanced Study, Kyushu University, Fukuoka, Japan; and
10. Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan