1. Department of Development and Regeneration KU Leuven Leuven Belgium
2. Department of Obstetrics and Gynecology University Hospitals Leuven Leuven Belgium
3. Department of Obstetrics and Gynecology Skåne University Hospital, Lund University Malmö Sweden
4. Department of Clinical Sciences Malmö Lund University Malmö Sweden
5. Department of Obstetrics, Gynecology and Reproduction Hospital Universitario Dexeus Barcelona Spain
6. Department of Obstetrics and Gynecology Clinica Universidad de Navarra, School of Medicine Pamplona Spain