1. Department of Pathology; Kurume University; School of Medicine; Kurume Japan
2. Department of Haematology; Hokkaido University Graduate School of Medicine; Sapporo Japan
3. Department of Haematology; Iizuka Hospital; Iizuka Japan
4. Department of Haematology; Harasanshin Hospital; Fukuoka Japan
5. Department of Haematology; Hamanomachi Hospital; Fukuoka Japan
6. Department of Haematology; Kushiro Rosai Hospital; Kushiro Japan
7. Department of Haematology; Kurume University; School of Medicine; Kurume Japan