1. Department of Pathology; Faculty of Medicine; Fukuoka University; Fukuoka Japan
2. Department of Pathology; Matsuyama Red Cross Hospital; Matsuyama Japan
3. Department of Internal Medicine; Clinical Research Center; National Hospital Organization Kyushu Medical Center; Fukuoka Japan
4. Department of Hematology; Matsuyama Red Cross Hospital; Matsuyama Japan
5. Department of Pathology; Clinical Research Center; National Hospital Organization Kyushu Medical Center; Fukuoka Japan
6. Division of Medical Oncology, Hematology and Infectious Disease; Department of Internal Medicine; Faculty of Medicine; Fukuoka University; Fukuoka Japan