Authors
Anna Szczotka-Bochniarz
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Katarzyna Podgórska
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Agnieszka Nowak
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Zygmunt Pejsak
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland