1. Department of Pharmacology and Toxicology, Faculty of Medicine, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
2. Students’ Scientific Society of Geriatrics, University of Warmia and Mazury, Olsztyn, Poland
3. Department of Cytophysiology, Chair of Histology and Embryology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
4. Department of Internal Medicine, University of Warmia and Mazury, Olsztyn, Poland
5. Department of Family Medicine and Infectious Diseases, University of Warmia and Mazury, Olsztyn, Poland