1. Department of Obstetrics, Perinatology University Hospital, 30-551 Kraków, Poland
2. Hi-Gen Centrum Medyczne, 30-552 Kraków, Poland
3. Department of Obstetrics and Perinatology, Jagiellonian University Medical College, 30-551 Kraków, Poland
4. Clinical Department of Gynecological Endocrinology and Gynecology, University Hospital, 30-551 Kraków, Poland
5. Department of Genetics, Polish Mother’s Memorial Hospital-Research Institute, 93-338 Łódź, Poland
6. Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, 20-081 Lublin, Poland
7. Department of Gynecology, Obstetrics and Gynecological Oncology, Medical University of Silesia, 40-055 Katowice, Poland
8. Obstetrics and Gynecology Ward, Independent Public Health Care Facility “Bl. Marta Wiecka County Hospital”, 32-700 Bochnia, Poland
9. Clinic of Obstetrics and Gynecology, Provincial Combined Hospital in Kielce, 25-736 Kielce, Poland
10. Department of Obstetrics, Perinatology and Gynecology, Medical University of Warsaw, 02-091 Warsaw, Poland
11. Department of Perinatology, Obstetrics and Gynecology, Polish Mother’s Memorial Hospital-Research Institute, 93-338 Łódź, Poland
12. Department of Gynecology and Obstetrics, Medical University of Łódź, 93-338 Łódź, Poland
13. Salve Medica, 91-210 Lodz, Poland