| Affiliation: | 1. Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea;2. Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea;3. Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea;4. Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea;5. Division of Hematology‐Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea;6. Department of Internal Medicine, School of Medicine Chungnam National University and Chungnam National University Hospital, Daejeon, Korea;7. Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea;8. Department of Internal Medicine, Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea;9. Department of Internal Medicine, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea;10. Department of Internal Medicine, Chung‐Ang University College of Medicine, Seoul, Korea;11. Department of Oncology, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea;12. Department of Hematology‐Oncology, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea;13. Department of Internal Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Seoul, Korea;14. Department of Internal Medicine, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea;15. Department of Internal Medicine, Ewha Medical Research Center, School of Medicine, Ewha Womans University, Seoul, Korea;16. Department of Internal Medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Gyeonggi‐do, Korea;17. Departments of Preventive Medicine and;18. Clinical Epidemiology and Biostatistics, Ulsan University College of Medicine, Asan Medical Center, Seoul, Korea;19. Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea |
