1. 2nd Department of Gynecology, Medical University of Lublin, Ulica Jaczewskiego 8, 20-954 Lublin, Poland
2. Department of Gynecology and Gynecologic Oncology, Military Institute of Medicine, Ulica Szaserów 128, 04-141 Warsaw, Poland
3. Department of Gynecology and Gynecologic Oncology, Medical University of Białystok, Ulica M. Skłodowskiej-Curie 24a, 15-276 Białystok, Poland