1. Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
2. Department of Hematology, Seoul St. Mary’s Hematology Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
3. Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
4. Catholic Genetic Laboratory Center, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
5. Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea