Authors
Paulina T. Vladova
Department of Propedeutics of Surgical Diseases, Medical University – Pleven, Bulgaria
Sergey D. Iliev
Department of Propedeutics of Surgical Diseases, Medical University – Pleven, Bulgaria
© 2022 Paulina T. Vladova, Sergey D. Iliev, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.