Authors
Małgorzata Pomorska-Mól
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Krzysztof Kwit
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Iwona Markowska-Daniel
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland