1. Division of Hematology-Oncology, Department of Medicine, Chung-Ang University Hospital, Seoul, Korea
2. Division of Hematology-Oncology, Department of Internal Medicine, Institute of Health Science, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju, Korea
3. Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea
4. Division of Hematology-Oncology, Gachon University College of Medicine, Incheon, Korea
5. Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
6. Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
7. Division of Hematology-Oncology, Seoul National University Bundang Hospital, Seongnam, Korea
8. National Cancer Center, Goyang, Korea
9. Division of Hematology-Oncology, Seoul National University Hospital, Seoul, Korea
10. Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
11. Division of Hematology-Oncology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
12. Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Korea
13. Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Gwangju, Korea
14. Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
15. Division of Hematology-Oncology, Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Korea
16. Inje University Busan Paik Hospital, Busan, Korea
17. Division of Hematology-Oncology, Department of Internal Medicine, School of Medicine, Medical Research Institute, Pusan National University Hospital, Busan, Korea