1. Department of Anatomy, P.J. Šafárik University, Faculty of Medicine, Košice, Slovakia
2. Department of Medical Biology, P.J. Šafárik University, Faculty of Medicine, Košice, Slovakia
3. Department of Pathology, P.J. Šafárik University, Faculty of Medicine, Košice, Slovakia
4. Department of Anesthesiology and Intensive Medicine, P.J. Šafárik University, Faculty of Medicine and VUSCH a.s., Košice, Slovakia