1. Department of Obstetrics and Gynecology, Skåne University Hospital Malmö; Lund University; Lund; Sweden
2. KU Leuven, Department of Development and Regeneration; Leuven; Belgium
3. Gynecology and Early Pregnancy Ultrasound Unit, S. Orsola - Malpighi Hospital; University of Bologna; Bologna; Italy
4. Clinica Ostetrica e Ginecologica, Ospedale S. Gerardo; Università di Milano Bicocca; Monza; Italy
5. Department of Obstetrics and Gynecology, Clinical Sciences Institute L. Sacco; University of Milan; Milan; Italy
6. 1st Department of Gynecologic Oncology and Gynecology; Medical University of Lublin; Lublin; Poland
7. Oncogynecological Center, Department of Obstetrics and Gynecology, First Medical Faculty; Charles University in Prague; Prague; Czech Republic
8. Department of Obstetrics and Gynecology of the University of Cagliari; Ospedale San Giovanni di Dio; Cagliari; Italy
9. KU Leuven Department of Development and Regeneration; Obstetrics and Gynecology University Hospitals Leuven; Belgium