1. Division of Rheumatology; Department of Medicine; Faculty of Medicine; Siriraj hospital; Mahidol University; Bangkok Thailand
2. Division of Rheumatology; Department of Medicine; Pramongkutklao and College of Medicine; Bangkok Thailand
3. Division of Allergy, Immunology and Rheumatology; Department of Medicine; Faculty of Medicine; Ramathibodi Hospital; Mahidol; Bangkok Thailand
4. Division of Rheumatology; Department of Medicine; Faculty of Medicine; Vajira Hospital; Navamindradhiraj University; Bangkok Thailand
5. Division of Allergy, Immunology and Rheumatology; Department of Medicine; Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand
6. Division of Rheumatology; Department of Internal Medicine; Faculty of Medicine; Chiang Mai University; Chiang Mai Thailand
7. Rheumatology Unit; Department of Internal Medicine; Rajavithi Hospital; Bangkok Thailand
8. Division of Rheumatology; Department of Medicine; Faculty of Medicine; Prince of Songkla University; Songkla Thailand
9. Division of Rheumatology; Department of Medicine; Faculty of Medicine; Chulalongkorn University; Bangkok Thailand