1. Department of Physiology and Biomedical Center Martin, Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia
2. Clinic of Otorhinolaryngology and Head and Neck Surgery, Jessenius Faculty of Medicine, Comenius University and University Hospital Martin, Martin, Slovakia
3. Clinic of Neonatology, Jessenius Faculty of Medicine, Comenius University and University Hospital Martin, Martin, Slovakia