1. Division of Medical Oncology, Hematology and Infectious Diseases, Department of Medicine, Fukuoka University, Fukuoka, Japan;
2. Center for AIDS Research, Kumamoto University, Kumamoto, Japan;
3. Clinical Research Institute, National Kyushu Cancer Center, Fukuoka, Japan;
4. Division of Hematology and Immunology, Center for Chronic Viral Diseases, and
5. Department of Dermatology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan;
6. Department of Dermatology, Miyazaki University, Miyazaki, Japan;
7. Department of Hematology, Imamura Bun-in Hospital, Kagoshima, Japan;
8. Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan;
9. Department of Hematology, National Hospital Organization, Kagoshima Medical Center, Kagoshima, Japan;
10. Department of Hematology, Japanese Red Cross Nagasaki Genbaku Hospital, Nagasaki, Japan;
11. Department of Hematology, Atomic Bomb Disease and Hibakusha Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan;
12. Department of Hematology, Sasebo City General Hospital, Sasebo, Japan;
13. Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan;
14. Department of Hematology, National Hospital Organization, Nagasaki Medical Center, Ohmura, Japan;
15. Department of Hematology, Kumamoto Shinto General Hospital, Kumamoto, Japan;
16. Department of Internal Medicine, Karatsu Red Cross Hospital, Karatsu, Japan;
17. Department of Internal Medicine, Miyazaki Prefectural Hospital, Miyazaki, Japan;
18. Department of Hematology, Hamanomachi Hospital, Fukuoka, Japan; and
19. Cancer Center, Shimane University Hospital, Izumo, Japan