Sikora, Kamil, Agnieszka Wawryniuk, Robert Jan Łuczyk, and Marta Łuczyk. 2021. “Nutritional Status and Quality of Life of Patients After Pacemaker Implantation”. Journal of Education, Health and Sport 11 (5):131-37. https://doi.org/10.12775/JEHS.2021.11.05.013.