Ilko, A., B. Wudarczyk, R. Czyż, and B. Jankowska-Polańska. “Arterial Hypertension - Definition, Epidemiology, Etiology, Complications and Treatment”. Journal of Education, Health and Sport, vol. 8, no. 8, July 2018, pp. 533-41, https://apcz.umk.pl/JEHS/article/view/5693.