1.
USPENSKY, O. E. and PUSTOVOIT, P. I. Clinical studies of phytogel "Kvertulidon" stomatoprotective action in patients with helicobacter gastritis. Journal of Education, Health and Sport. Online. 26 July 2019. Vol. 9, no. 7, pp. 423-428. [Accessed 18 April 2026].