1. Institute of Periodontology, Faculty of Medicine University of Coimbra Coimbra Portugal
2. Rheumatology Department Centro Hospitalar e Universitário de Coimbra Coimbra Portugal
3. Section for Biostatistics and Evidence‐Based Research the Parker Institute, Bispebjerg and Frederiksberg Hospital Copenhagen Denmark
4. Centre for Evidence‐Based Practice Western Norway University of Applied Sciences Bergen Norway
5. Coimbra Institute for Clinical and Biomedical Research (iCBR) Faculty of Medicine University of Coimbra Coimbra Portugal
6. Research Unit of Rheumatology Department of Clinical Research University of Southern Denmark Odense University Hospital Odense Denmark