1 | Department of Public Health, Faculty of Medicine, University of P. J. Šafárik, Košice, Slovak Republic |
2 | Department of Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic |
3 | Department of Hygiene and Technology Milk, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic |
4 | Department of Medical Informatics, Faculty of Medicine, University of P. J. Šafárik, Košice, Slovak Republic |
5 | Department of Surgery, Railway Hospital, Košice, Slovak Republic |