Staniszewska, Anna, et al. “Analysis of patients’ Knowledge on Risk Factors of Cardiovascular Diseases and New Technology of Self-Control This Factors - Especially With Cholesterol”. Journal of Education, Health and Sport, vol. 7, no. 8, Aug. 2017, pp. 1135-42, https://apcz.umk.pl/JEHS/article/view/4975.