1. Department of Obstetrics, Gynaecology and Obstetric-Gynaecological Nursing , Medical University , Lublin , Poland
2. Chair and Clinic of Gynaecology and Gynaecological Endocrinology , Medical University , Lublin , Poland
3. Department of Gynaecology and Obstetrics, Cardinal Stefan Wyszyński Regional Specialist Hospital , Lublin , Poland