1. Medical University of Białystok and Private Dental Office in Białystok, ul. Rzemieślnicza 37, Białystok 15-773, Poland
2. Otolaryngology Department, Medical University of Białystok, M. Skłodowskiej-Curie 24 A, 15-276 Białystok, Poland
3. Faculty of Medicine, Medical University of Białystok, M. Skłodowskiej-Curie 24 A, 15-276 Białystok, Poland
4. Department of Social and Preventive Dentistry of Medical University in Białystok, ul. Akademicka 3, Białystok 15-286, Poland
5. Department of Periodontology, Medical University of Białystok, ul. Waszyngtona 13, 15-269 Białystok, Poland
6. Department of Experimental Pharmacology, Medical University of Białystok, ul. Szpitalna 37, 15-295 Białystok, Poland