1. Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Republic of Korea
2. Division of Hematology-Oncology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Republic of Korea
3. Department of Internal Medicine, Dong-A University Hospital, Busan, Republic of Korea
4. Department of Dermatology, National Cancer Center, Goyang, Republic of Korea
5. Department of Pulmonology, Dong-A University Hospital, Busan, Republic of Korea
6. Department of Pathology, Dong-A University College of Medicine, Busan, Republic of Korea
7. Department of Internal Medicine, Gyeongsang National University Hospital, Jinju, Republic of Korea
8. Department of Medicine, Samsung Medical Center, Seoul, Republic of Korea
9. Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
10. Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
11. Division of Hematology-Oncology, Department of Medicine, Kosin University College of Medicine, Busan, Republic of Korea
12. Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
13. Department of Internal Medicine, Soonchunhyang University Hospital Cheonan, Cheonan, Republic of Korea
14. Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Republic of Korea