1. University of Padua; Padua Italy
2. University of Southern California; Los Angeles
3. University Medical Center of Johannes Gutenberg University; Mainz Germany
4. St. Luke's International University; Tokyo Japan
5. Rheumatology Hospital Abreu Sodre; São Paulo Brazil
6. Amsterdam Rheumatology and Immunology Center; Amsterdam The Netherlands
7. GlaxoSmithKline; Research Triangle Park North Carolina
8. GlaxoSmithKline; Collegeville Pennsylvania
9. GlaxoSmithKline; Rockville Maryland