1 Division of Hematology, Diabetes, and Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, 5200 Kihara Kiyotake, Miyazaki, 889-1692, Japan.
2 Department of Hematology, Clinical Immunology, and Infectious Diseases, Ehime University Graduate School of Medicine, Touon-shi, Ehime, Japan.
3 Department of Laboratory Medicine, Kawasaki Medical School, Kurashiki, Japan.
4 Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Science, Fukuoka, Japan.
5 Department of Hematology and Oncology, Nagoya City West Medical Center, Nagoya, Japan.
6 Division of Hematology, Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Japan.
7 Department of Hematology, Hakodate City Hospital, Hakodate, Japan.
8 Department of Hematology, Eiju General Hospital, Tokyo, Japan.
9 Department of Hematology, NTT Medical Center Tokyo, Tokyo, Japan.
10 Division of Hematology, Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan.
11 Department of Hematology, National Hospital Organization Okayama Medical Center, Okayama, Japan.
12 Department of Hematology/Oncology, Kurashiki Central Hospital, Okayama, Japan.
13 Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan.
14 Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan.
15 Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
16 Department of Hematology and Oncology, Dokkyo Medical University, Tochigi, Japan.
17 Division of Hematology, Diabetes, and Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, 5200 Kihara Kiyotake, Miyazaki, 889-1692, Japan. kshimoda@med.miyazaki-u.ac.jp.