1. NOVA National School of Public Health, Public Health Research Centre, Universidade NOVA de Lisboa, Lisboa, Portugal
2. Comprehensive Health Research Centre (CHRC), Lisboa, Portugal
3. School of Health Sciences, University of Brighton, Brighton, UK
4. Infectious Diseases Section, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
5. Epidemiology of Infectious Diseases, Sciensano, Brussels, Belgium
6. Centre d’Estudis Epidemiològics sobre les Infeccions de Transmissió Sexual i Sida de Catalunya (CEEISCAT), Dept Salut, Generalitat de Catalunya/CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
7. Department of Infectious Disease Epidemiology, Robert Koch Institute, Berlin, Germany
8. NRC for HIV/AIDS, Slovak Medical University, Bratislava, Slovak Republic
9. Social AIDS Committee, Warsaw, Poland
10. Centre for Communicable Diseases and AIDS, Mykolas Romeris University, Vilnius, Lithuania
11. Ministry of Health, Program “Prevention and Control of HIV/AIDS”, Sofia, Bulgaria
12. National Institute of Public Health, Ljubljana, Slovenia
13. Public Health Agency of Sweden, Stockholm, Sweden
14. Epidemiology Unit - UOC Infectious Diseases, Verona University Hospital, Verona, Italy
15. Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium