1. Department of Clinical Microbiology, Infection and Immunology; Umeå University; Umeå Sweden
2. Department of Clinical Sciences/Obstetrics and Gynaecology; Umeå University; Umeå Sweden
3. Department of Women’s and Children’s Health, Obstetrics and Gynaecology; Karolinska Institutet; Stockholm Sweden
4. Department of Molecular Biosciences; The Wenner-Gren Institute; Stockholm University; Stockholm Sweden