Rodríguez-Abrahantes, Taimi Nereida, et al. “Designed Preventive Stratefy for Infirmary on Cardiovascular Ilnesses in Old Men of an Area of Health Quemado of Guines”. CEUS Scientific Journa, vol. 2, no. 3, Dec. 2020, pp. 1-6, https://ceus.ucacue.edu.ec/index.php/ceus/article/view/41.