1. Department of Clinical Laboratory Diagnostics, Medical University of Bialystok, Białystok, Poland
2. 2nd Clinical Department of General and Gastroenterological Surgery, Medical University of Bialystok, Białystok, Poland
3. Department of General Pathomorphology, Medical University of Bialystok, Białystok, Poland
4. Department of Restorative Dentistry, Croydon University Hospital, Croydon, Surrey, UK
5. Independent Laboratory of Experimental Dentistry, Medical University of Bialystok, Białystok, Poland
6. Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, Białystok, Poland