1 INVICTA Fertility and Reproductive Center, Gdansk; Department of Obstetrics and Gynecological Nursing, Faculty of Health Sciences, Medical University of Gdansk, Gdansk; Department of Obstetrics and Gynecology, Faculty of Medical Sciences, University of Varmia and Masuria, Olsztyn.
2 INVICTA Fertility and Reproductive Center, Warsaw.
3 INVICTA Fertility and Reproductive Center, Warsaw; Department of Obstetrics and Gynecology, Medical Center of Postgraduate Education, Warsaw, Poland.