1. Department of Rheumatology Montpellier University Hospital University of Montpellier‐Nimes Montpellier France
2. UMR 1302 Institute Desbrest of Epidemiology and Public Health INSERM Univ Montpellier Montpellier France
3. Department of Rheumatology Nîmes University Hospital Nîmes France
4. Center for Clinical Epidemiology and Biostatistics University of Pennsylvania
5. Abramson Cancer Center University of Pennsylvania
6. Department of Rheumatology FHU ACRONIM CHU Pellegrin Bordeaux France