KRZYŻANOWSKA, Ewa, INDYCKA, Ewelina, ŁUCZYK, Robert Jan, ŁUCZYK, Marta, SAWICKA, Katarzyna, WAWRYNIUK, Agnieszka and DANILUK, Jadwiga. Knowledge level and incidence of complications in diabetic patients. Journal of Education, Health and Sport. Online. 31 August 2017. Vol. 7, no. 8, pp. 446-472. [Accessed 26 February 2025].