1. Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan
2. Department of Internal Medicine Chi Mei Medical Center Tainan Taiwan
3. Chung Shan Medical University Taichung Taiwan
4. Gung Memorial Hospital Kaohsiung Taiwan
5. Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine Kaohsiung Chang Gung Memorial Hospital, and School of Medicine, College of Medicine, Chang Gung University Taoyuan Taiwan