1. Department of Dermatology; Kurume University School of Medicine; Kurume Japan
2. Department of Medicine, Division of Hematology and Oncology, Kitakyushu General Hospital; Kitakyushu Japan
3. Department of Pathology; Kurume University School of Medicine; Kurume Japan
4. Department of Medicine, Division of Hematology and Oncology; Kurume University School of Medicine; Kurume Japan