Sorokman Tаmila; CHERNEI, Nadiia; SOKOLNYK, Snizhana; SOKOLNYK, Iryna; POPELYUK, Nataliya. 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, [S. l.], v. 10, n. 11, p. 261–272, 2020. DOI: 10.12775/JEHS.2020.10.11.026. Disponível em: https://apcz.umk.pl/JEHS/article/view/JEHS.2020.10.11.026. Acesso em: 9 apr. 2026.