1. Department of Global Public Health, Karolinska Institutet, Sweden
2. Center for Epidemiology and Community Medicine, Region Stockholm, Sweden
3. Institute for Family and Sexuality Studies, KU Leuven, Belgium
4. Department of Infectious Diseases, South General Hospital, Sweden
5. Department of Women’s and Children’s Health, Karolinska Institutet, Sweden
6. Department of Women’s and Children’s Health, Uppsala University, Sweden