Szklener, K., Maciąg, M., Marczak, A., Margas, M. and Mańdziuk, S. 2022. Atypical age of onset of the small bowel adenocarcinoma – case report. Journal of Education, Health and Sport. 12, 10 (Oct. 2022), 327–334. DOI:https://doi.org/10.12775/JEHS.2022.12.10.039.