1. Division of Rheumatology, Department of Internal Medicine Keimyung University Dongsan Hospital Daegu South Korea
2. Division of Hematology, Department of Internal Medicine, Asan Medical Center University of Ulsan College of Medicine Seoul South Korea
3. Division of Rheumatology, Department of Internal Medicine, Asan Medical Center University of Ulsan College of Medicine Seoul South Korea
4. Department of Information Medicine Big Data Research Center, Asan Medical Center Seoul South Korea