1. Department of Infectious Diseases, Copenhagen University Hospital, Hvidovre
2. Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen
3. Department of Epidemiology Research, Statens Serum Institut, Copenhagen
4. Department of Infectious Diseases, Aarhus University Hospital, Aarhus
5. Department of Infectious Diseases, Aalborg University Hospital, Aalborg
6. Department of Infectious Diseases, Odense University Hospital, Odense
7. Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet
8. Center for Sexology Research, Department of Clinical Medicine, Aalborg University, Aalborg
9. Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.