1 Department of Genitourinary Medicine, Sexual Health Dept, Buckinghamshire Healthcare NHS Trust, Amersham, UK.
2 Department of Genitourinary Medicine, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
3 Department of Obstetrics and Gynecology, Regional Hospital H Hart Tienen, University Hospital Antwerp, and Femicare, Clinical Researh for Women, Tienen, Belgium.
4 Deutsches Zentrum für Infektionen in Gynäkologie und Geburtshilfe, Wuppertal, Germany.
5 Research Unit for Reproductive Microbiology, Statens Serum Institut, Copenhagen, Denmark.