1. Division of Rheumatology, Department of Internal Medicine; Mayo Clinic; Rochester MN USA
2. Division of Rheumatology, Department of Medicine, Faculty of Medicine Siriraj Hospital; Mahidol University; Bangkok Thailand
3. Department of Internal Medicine; Bassett Medical Center; Cooperstown New York USA
4. Department of Pathology and Laboratory Medicine, School of Medicine and Public Health; University of Wisconsin-Madison; Madison Wisconsin USA
5. Department of Pharmacology, Faculty of Science; Mahidol University; Bangkok Thailand