1. II Department of Obstetrics and Gynaecology, Medical University of Warsaw, 02-091 Warsaw, Poland
2. Students’ Scientific Group, II Department of Obstetrics and Gynaecology, Medical University of Warsaw, 02-091 Warsaw, Poland
3. Second Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, 00-189 Warsaw, Poland
4. Warsaw Institute of Women’s Health, 00-189 Warsaw, Poland
5. School of Clinical Medicine, University of Cambridge, Cambridge CB2 0SP, UK
6. Department of Global Health, Koç University Graduate School of Health Sciences, İstanbul 34450, Turkey
7. Department of Obstetrics and Gynecology, University Hospitals Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany