1. Department of Medicine Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand
2. Division of Allergy, Immunology, and Rheumatology Department of Medicine Faculty of Medicine Ramathibodi Hospital Mahidol University Bangkok Thailand
3. Division of Rheumatology Department of Medicine Phramongkutklao Hospital Phramongkutklao College of Medicine Bangkok Thailand
4. Division of Rheumatology Department of Internal Medicine Faculty of Medicine Chiang Mai University Chiang Mai Thailand
5. Division of Rheumatology Department of Medicine Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand