Krzyżanowska, Ewa, Ewelina Indycka, Robert Jan Łuczyk, Marta Łuczyk, Katarzyna Sawicka, Agnieszka Wawryniuk, and Jadwiga Daniluk. “Knowledge Level and Incidence of Complications in Diabetic Patients”. Journal of Education, Health and Sport 7, no. 8 (August 31, 2017): 446–472. Accessed April 19, 2024. https://apcz.umk.pl/JEHS/article/view/4758.