1. Department of Internal Medicine, Hallym University Sacred Heart Hospital, College of Medicine, Anyang, Korea.
2. Department of Pathology, Hallym University Sacred Heart Hospital, College of Medicine, Anyang, Korea.
3. Department of Dermatology, Hallym University Sacred Heart Hospital, College of Medicine, Anyang, Korea.
4. Department of Rheumatology, Sam Hospital, Anyang, Korea.