1. Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
2. Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
3. Department of Hematology, Soon Chun Hyang University Hospital, College of Medicine Soon Chun Hyang University of Korea Seoul Republic of Korea
4. Department of Hematology, Yeouido St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
5. Department of Hematology, Eunpyeong St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
6. Department of Hematology, Incheon St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea