1. Division of Rheumatology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
2. Division of Rheumatology, Department of Internal Medicine, Korea University Ansan Hospital, Seoul, Korea.
3. Department of Information Medicine, Big Data Research Center, Asan Medical Center, Seoul, Korea.
4. Convergence Medicine Research Center, Asan Institute for Life Science, Asan Medical Center, Seoul, Korea.