1. Department of Human Physiology of the Chair of Preclinical Sciences, Medical University of Lublin, Radziwiłłowska 11, 20-080 Lublin, Poland
2. Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland
3. Chair of Oral Surgery, Jagiellonian University Medical College, 31-155 Kraków, Poland