Wronecki, Jakub, Ewa Tywanek, Paulina Trojanowska, Barbara Skrzydło-Radomańska, Agnieszka Zwolak, and Robert Jan Łuczyk. 2020. “Expanding the Knowledge of Helicobacter Pylori – New Directions, New Challenges”. Journal of Education, Health and Sport 10 (9):770-76. https://doi.org/10.12775/JEHS.2020.10.09.093.