1. Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
2. Division of Rheumatology, Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
3. Division of Rheumatology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
4. Division of Rheumatology, Department of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
5. Division of Rheumatology, Department of Internal Medicine, Kyung Hee University Hospital, School of Medicine, Kyung Hee University, Seoul, Korea
6. Division of Nephrology, Department of Internal Medicine, Chung-Ang University School of Medicine, Seoul, Korea
7. Division of Nephrology, Department of Internal Medicine, Kyung Hee University Medical Center, Seoul, Korea
8. Department of Family Medicine, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
9. Division of Endocrinology & Metabolism, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
10. Division of Cardiology, Department of Internal Medicine, College of Medicine, Hanyang University, Seoul, Korea
11. Lights & Salt Internal Medicine, Goyang, Korea
12. Department of Family Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
13. Institute for Evidence-Based Medicine, Cochrane Korea, Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
14. Division of Rheumatology, Department of Internal Medicine, Chung-Ang University School of Medicine, Seoul, Korea
15. Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
16. Department of Family Medicine, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
17. Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
18. Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
19. Division of Endocrinology and Metabolism, Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
20. Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea