1. Public Health Department AP-HP, Saint-Louis – Lariboisiere Fernand-Widal Hospital Group, Paris, France
2. Center for Free and Anonymous Screening of HIV, Hepatitis and Sexually Transmitted Diseases, Saint-Louis – Lariboisiere Fernand-Widal Hospital Group, Paris, France
3. Aremedia, Association for Prevention and Harm Reduction (Drug Use and Sexual Activity), Paris, France
4. Clinical Epidemiology Department, AP-HP, Robert Debre Hospital, Paris, France
5. INSERM, U 1123 and CIC-EC 1426, ECEVE, Paris, France
6. Epidémiologie clinique-évaluation économique appliqué aux populations vulnérables, University Paris Diderot, Paris, France