1. Centre of Epidemiological Studies on Sexually Transmitted Infections and AIDS of Catalunya (CEEISCAT) Department of Health Generalitat of Catalunya Badalona Spain
2. Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP) Instituto de Salud Carlos III Madrid Spain
3. Institut Universitari d'Investigació en Atenció Primària (IDIAP Jordi Gol) Barcelona Spain
4. Research Support Unit Primary Health General Directorate of Costa de Ponent Catalan Institute of Health (ICS) Cornellà de Llobregat Spain
5. Catalan Society of Family and Community Medicine (CAMFiC) Barcelona Spain
6. Spanish Society of Family and Community Medicine (semFYC) Barcelona Spain
7. Department of Clinical Sciences Faculty of Medicine University of Barcelona (UB) Barcelona Spain
8. Health Department Catalan Government Barcelona Spain
9. Unit of Infections and Cancer ‐ Information and Interventions (UNIC ‐ I&I) Cancer Epidemiology Research Program (CERP) Hospitalet de Llobregat Barcelona Spain
10. Medical Management of Primary Care Servicies STI/HIV Area Catalan Institute of Health (ICS) Barcelona Spain
11. Association of Family and Community Nursing of Catalonia (AIFiCC) Barcelona Spain
12. Centro de Atención Primaria Casanova Consorci d’Atenció Primària de Salut Barcelona Esquerra (CAPSBE) Barcelona Spain
13. Department of Paediatrics, Obstetrics and Gynecology and Preventive Medicine Universitat Autónoma de Barcelona Badalona Spain