PhD. I.T.Alikulov, J.Sh.Haytimbetov, and N.M.Narziyev. “MYOCARDIAL INFARCTION: PATHOGENESIS, SIGNS AND SYMPTOMS, DIAGNOSIS”. World Bulletin of Social Sciences, vol. 18, Jan. 2023, pp. 72-75, https://scholarexpress.net/index.php/wbss/article/view/1998.