Authors
Iwona Markowska-Daniel
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Kinga Urbaniak
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Marian Porowski
Veterinary Clinic, Pobiedziska, Poland
Paweł Karbowiak
Vet-Com, Olsztyn, Poland
Andrzej Kowalczyk
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Edyta Kozak
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland
Zygmunt Pejsak
Department of Swine Diseases, National Veterinary Research Institute, Pulawy, Poland