1. Division of Hematology and Medical Oncology, Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
2. Division of Hematology and Oncology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
3. Division of Hematology and Oncology, Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea.
4. Evidence Solutions, AbbVie Inc., North Chicago, IL, USA.
5. Medical Affairs, AbbVie Korea Ltd., Seoul, Korea.
6. Department of Hematology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.