1. Division of Rheumatology, Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
2. Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
3. Division of Infection Disease, Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
4. Department of Orthopedic Surgery, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.