IVANYUK, A. V. Organization of preventive medical care for the patients with the diseases of the circulatory system (according to sociological survey). Journal of Education, Health and Sport. Online. 29 January 2021. Vol. 11, no. 1, pp. 246-252. [Accessed 7 January 2025]. DOI 10.12775/JEHS.2021.11.01.024.