1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Kyung Hee University Hospital, Seoul, Korea.
2. Department of Orthopedic Surgery, Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
3. Division of Endocrinology and Metabolism, Department of Internal Medicine, Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
4. Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
5. Division of Endocrinology, Department of Internal Medicine, Sanbon Hospital, Wonkwang University School of Medicine, Gunpo, Korea.
6. Division of Rheumatology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.
7. Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
8. Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea.
9. National Evidence-based Healthcare Collaborating Agency, Seoul, Korea.
10. Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea.
11. Division of Endocrinology and Metabolism, Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.