1. Cancer Research Institute, The Catholic University of Korea; Seoul; Korea
2. Department of Hematology-Oncology; Chonnam National University Hwasun Hospital; Hwasun; Korea
3. Department of Hematology-Oncology; Ajou University School of Medicine; Suwon; Korea
4. Department of Internal Medicine; Dong-A University College of Medicine; Busan; Korea
5. Department of Internal Medicine; Hallym University College of Medicine; Anyang; Korea
6. Division of Hematology-Oncology; Department of Internal Medicine; Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University; Seoul; Korea
7. Division of Hematology and Hematological Malignancies; Ulsan University Hospital, University of Ulsan college of Medicine; Ulsan; Korea
8. Division of Hematology-Oncology; School of Medicine; Keimyung University; Daegu; Korea
9. Division of Hematology-Oncology; Chonbuk National University Medical School; Jeonju; Korea
10. Department of Hematology, St. Vincent's Hospital; The Catholic University of Korea; Suwon; Korea
11. Department of Hematology; Asan Medical Center, University of Ulsan College of Medicine; Seoul; Korea
12. Department of Hematology; School of Medicine; Ewha Womans University; Seoul; Korea
13. Center for Hematologic Malignancies; Knight Cancer Institute; Oregon Health & Science University; Portland; Oregan