For citations:
Polivanova T.V., Vshivkov V.A. Prevalence of CagA-positive Helicobacter pylori strain and H. pylori-associated gastritis activity in Tuva schoolchildren of different age groups. Russian Journal of Gastroenterology, Hepatology, Coloproctology. 2016;26(6):18-23. (In Russ.) https://doi.org/10.22416/1382-4376-2016-6-18-23