1. Department of Obstetrics and Gynecology, Pro-Familia Hospital, Rzeszów, Poland;
2. Faculty of Medicine, Institute of Nursing and Health Sciences, University of Rzeszów, Rzeszów, Poland;
3. Division of Perinatology and Women’s Diseases, Poznań University of Medical Sciences, Poznań, Poland;
4. Students’ Scientific Association at the First Department of Obstetrics and Gynecology, Medical University of Warsaw, Warsaw, Poland;
5. Department of Obstetrics and Gynecology, Faculty of Medicine, University of Rzeszów, Poland;
6. Second Department of Obstetrics and Gynecology, The Center of Postgraduate Medical Education, Warsaw, Poland