Bogatu, S. I. “The Effect of Mucosal-Adhesive Phytogels “Kvertulin” and ‘Lekvin’ on the State of the Oral Cavity in Patients With Helicobacter Pylori-Associated Pathology of Gastroduodenal Area by the Data of Dental Indices”. Journal of Education, Health and Sport, vol. 9, no. 1, Jan. 2019, pp. 165-84, https://apcz.umk.pl/JEHS/article/view/6518.