1. Department of Pathophysiology, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland
2. Department of Neurological Surgery, Medical University of Lublin, Jaczewskiego 8, 20-090 Lublin, Poland
3. Faculty of Health Sciences, High School of Economics, Law and Medical Sciences, Jagiellońska 109A, 25-734 Kielce, Poland
4. 2nd Department of Anaesthesiology and Intensive Care, Medical University of Lublin, Staszica 16, 20-081 Lublin, Poland