1 Department of Gynecological Endocrinology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland. karolina.kowalczyk74@gmail.com.
2 Department of Anatomy, School of Medicine in Opole, University of Opole, Poland.
3 Department of Gynecology and Obstetrics, Hospital in Nysa, Poland.
4 Students Scientific Association of Gynecological Endocrinology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland.
5 Department of Urology and Urological Oncology, University Hospital in Wroclaw, Poland.