Authors
Marta Antas
Department of Swine Diseases, National Veterinary Research Institute, Puławy, Poland
Grzegorz Woźniakowski
Department of Swine Diseases, National Veterinary Research Institute, Puławy, Poland
© 2019 Marta Antas, Grzegorz Woźniakowski, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.