1. Permanent Board of the Catalan Society of Family and Community Medicine (CAMFiC), Barcelona; Primary Care Centre Les Corts, Consorci d’Atenció Primària de Salut Barcelona Esquerra (CAPSBE), Barcelona; and Primary Healthcare Transversal Research Group, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain. asiso@clinic.cat
2. General Practitioners Research Institute, Groningen, The Netherlands.
3. Autoimmune Diseases Unit, Department of Medicine, Hospital CIMA-Sanitas, Barcelona, and Department of Autoimmune Diseases, ICMiD, Hospital Clínic, Barcelona, Spain.
4. Permanent Board of the Catalan Society of Family and Community Medicine (CAMFiC), Barcelona, Spain.
5. Department of Autoimmune Diseases, ICMiD, Hospital Clínic, Barcelona, Spain, and Consejo Nacional de Ciencia y Tecnología (CONACYT), México DF, México.
6. Primary Care Centre Les Corts, Consorci d’Atenció Primària de Salut Barcelona Esquerra (CAPSBE), Barcelona, Spain.
7. Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Centre Groningen, the Netherlands.
8. Department of Autoimmune Diseases, ICMiD, Hospital Clínic, Barcelona, Spain.