Sorokman Tаmila, Nadiia Chernei, Snizhana Sokolnyk, Iryna Sokolnyk, and Nataliya Popelyuk. “The Influence of Helicobacter Pylori on the Level of Endotheline-1 and Nitrogen Oxide in the Blood of Children With the Duodenal Ulcer”. Journal of Education, Health and Sport 10, no. 11 (November 30, 2020): 261–272. Accessed April 24, 2024. https://apcz.umk.pl/JEHS/article/view/JEHS.2020.10.11.026.