1. National Cancer Control Institute, National Cancer Center, Goyang, Republic of Korea
2. Department of Family Medicine, National Cancer Center, Goyang, Republic of Korea
3. Department of Internal Medicine, Gyeongsang National University, Jinju, Republic of Korea
4. Department of Hematology and Oncology, Ulsan University Hospital, Ulsan University College of Medicine, Ulsan, Republic of Korea
5. Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
6. Department of Oncology, Asan Medical Center, Ulsan University College of Medicine, Seoul, Republic of Korea
7. Department of Hemato-Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
8. Department of Hemato-Oncology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
9. Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju, Republic of Korea
10. Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Republic of Korea
11. Division of Hemato-Oncology, Department of Internal Medicine, GangNeung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Republic of Korea
12. Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
13. Department of Internal Medicine, College of Medicine, Chungnam National University College of Medicine, Daejeon, South Korea
14. Department of Internal Medicine, Chungnam National University Sejong Hospital, Sejong, Republic of Korea
15. Daejeon Regional Cancer Center, Daejeon, Republic of Korea
16. Division of Hematology-Oncology, Department of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Republic of Korea
17. Department of Family Medicine, Seoul National University Hospital, Seoul, Republic of Korea
18. Department of Human System Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea