1. Department of Hematology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea;
2. Department of Internal Medicine, Haeundae Paik Hospital, College of Medicine Inje University, Busan, Korea;
3. Division of Hematology/Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea;
4. Division of Hematology-Medical Oncology, Department of Internal Medicine, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea;
5. Department of Hematology and Oncology, Chonnam National University Hwasun Hospital, Jeollanam-do, Korea;
6. Division of Hematology/Oncology, Department of Internal Medicine, Kosin University College of Medicine, Kosin University Gospel Hospital, Busan, Korea;
7. Division of Hematology-Oncology, Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea;
8. Division of Hematology and Cellular Therapy, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea;
9. Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea;
10. Department of Hemato-Oncology, Inje University Busan Paik Hospital, Busan, Korea;
11. Division of Hematology-Oncology, Department of Internal Medicine, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea;
12. Division of Hematology-Oncology, Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea;
13. Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea;
14. Department of Hematology-Oncology, School of Medicine, Pusan National University Hospital Medical Research Institute, Busan, Korea;
15. Hematologic Oncology Clinic, Center for Specific Organs Center, National Cancer Center, Goyang, Korea;
16. Division of Hematology-Oncology, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea; and
17. Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea