Institution: | 1. INSERM U738, Centre d''épidémiologie Clinique, French Cochrane Center, University Paris Descartes et Hotel Dieu, Paris, France.; 2. Department of Rheumatology, University Clermont 1, Clermont-Ferrand, France.; 3. Women''s College Research Institute, University of Toronto, Toronto, Ontario, Canada.; University of Illinois-Chicago, United States of America, |