1. Department of Internal Medicine, Rheumatology, Maastricht UMC, Maastricht, The Netherlands, and University Hasselt and ReumaClinic; Genk Belgium
2. Pacific Central Coast Health Center; Santa Maria CA USA
3. Miyauchi Medical Center; Osaka Japan
4. Department of Medicine, McMaster University; Hamilton ON Canada
5. Division of Endocrinology, Escola Paulista de Medicina, Universidade Federal de São Paulo; São Paulo Brazil
6. Department of Medicine; School of Clinical Sciences, Monash University; Clayton Australia
7. UNIENDO; Bogota Colombia
8. Amgen; Thousand Oaks CA USA
9. UCB Pharma; Brussels Belgium