Georgi Danielov Prandzhev1,2, Grigor Angelov Gortchev1,2, Dobromir Dimitrov Dimitrov3,4, Radoslav Iliev Miltchev5, Slavcho Tomov Tomov1,2
1Department of Obstetrics and Gynecology, Medical University - Pleven, Pleven, Bulgaria
2Department of Obstetrics and Gynecology, University Hospital Saint Marina - Pleven, Pleven, Bulgaria
3Department of Surgical Propaedeutics, Medical University - Pleven, Pleven, Bulgaria
4Department of Surgical Oncology, Dr. Georgi Stranski University Hospital, Pleven, Bulgaria
5Faculty of Industrial Technology, Technical University of Sofia, Sofia, Bulgaria