Thabet , H. H., , . L. R. . Méndez, J. C. . Álvarez, M. Q. . Ugando, and A. C. . Rodríguez Mendoza. “Self-Regulating Characterization of Risk Factors in the Heart for Elderly Consumers of Tobacco”. Journal of Medical Case Reports and Reviews, vol. 1, no. 07, Jan. 2022, http://jmcrr.info/index.php/jmcrr/article/view/23.