Authors
Tsanko Hristov
Department of Internal Non-Infectious Diseases, Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
© 2019 Tsanko Hristov, published by Ss. Cyril and Methodius University in Skopje
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.