1. Department of Obstetrics and Gynecology, University Hospital, Basel, Switzerland;
2. Cebu Institute of Medicine, Cebu City, Philippines;
3. Sexual Health Clinic, Väestöliitto (Family Federation of Finland), Helsinki, Finland;
4. Department of OB-GYN, Hospital Universitario Fundación Santa Fe de Bogota, Bogotá, Colombia;
5. The Ottawa Hospital, Ottawa, Canada