1. Department and Clinic of Animal Internal Medicine; Faculty of Veterinary Medicine; University of Life Sciences in Lublin; Lublin Poland
2. Department of Immunobiology; Institute of Experimental Biology; Kazimierz Wielki University in Bydgoszcz; Bydgoszcz Poland
3. Department and Clinic of Veterinary Surgery; Faculty of Veterinary Medicine; University of Life Sciences in Lublin; Lublin Poland
4. German Studies and Applied Linguistics; Faculty of Humanities; Maria Curie Skłodowska University; Lublin Poland