Affiliation: | 1. Department of Public Health, Lille Faculty of Dentistry, Lille 2 University, , Lille, France;2. Department of Public Health, Toulouse Faculty of Dentistry, Paul Sabatier University and Toulouse University Hospital, CHU de Toulouse, , Toulouse, France;3. Department of Rheumatology, Toulouse University Hospital, CHU de Toulouse, , Toulouse, France |