O artykule
Data publikacji: 20 lip 2020
Zakres stron: 269 - 273
DOI: https://doi.org/10.2478/kbo-2020-0043
Słowa kluczowe
© 2020 Venelin Terziev et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Terziev, Venelin
University of RousseBulgaria
Sakakushev, Boris
University of RousseBulgaria
Parvanov, Svetlin
University of RousseBulgaria
Georgiev, Marin
Kaneff University HospitalRousse, Bulgaria