1. Department of Hematology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

2. Department of Hematology, Yeoido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea

3. Department of Hematology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea

4. Department of Hematology, Eunpyeong St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

5. Department of Radiology, Seoul National University Hospital and Seoul National University College of Medicine; Seoul, Republic of Korea