1. Department of Endocrinologic Gynecology and Gynecology, University Hospital in Krakow, Krakow, Poland.
2. Gynaecology and Obstetrics Clinical Hospital of K. Marcinkowski Medical University in Poznań, Poznań, Poland.
3. Medical University of Białystok, Białystok, Poland.
4. Artemida—Gynaecology, Endocrinology and Reproductive Medicine Centre, Białystok, Poland.
5. Princess Anna Mazowiecka Clinical Hospital in Warsaw, Warsaw, Poland.
6. G. Narutowicz Municipal Specialist Hospital in Krakow, Krakow, Poland.
7. Military Medical Institute in Warsaw, Warsaw, Poland.
8. SPZOZ MSWiA in Szczecin, Szczecin, Poland.
9. Oncology Centre—M. Skłodowska-Curie Institute, Warsaw, Poland.
10. Oncological Haematology Centre in Łódź, Łódź, Poland.
11. Medical University of Warsaw, Warsaw, Poland.
12. “nOvum” Medical Clinic, Warsaw, Poland.
13. Świętokrzyskie Oncology Centre, Kielce, Poland.
14. Haematology and Transfusion Medicine Institute, Warsaw, Poland.
15. GAMETA Infertility Treatment Clinic, Rzgów, Poland.
16. Ignatianum Academy in Krakow, Krakow, Poland.
17. Oncology Centre—M. Skłodowska-Curie Institute, Krakow, Poland.
18. Department of Obstetrics and Gynecology, Fryderyk Chopin University Hospital No 1, Faculty of Medicine, Rzeszow University, Rzeszow, Poland.
19. INVICTA Fertility and Reproductive Center, Gdansk, Poland.
20. Department of Obstetric and Gynecological Nursing, Medical University of Gdansk, Gdansk, Poland.
21. Department of Gynecological Endocrinology, Medical University Warsaw, Warsaw, Poland.
22. Department of Perinatology and Obstetrics, Medical University of Bialystok, Poland.