Siddique, Nimrah, et al. “COMPARISON OF SERUM HOMOCYSTEINE AND FOLIC ACID LEVELS IN ACUTE MYOCARDIAL INFARCTION AND NORMAL HEALTHY POPULATION”. Pakistan Journal of Physiology, vol. 17, no. 3, Sept. 2021, pp. 7-10, https://pjp.pps.org.pk/index.php/PJP/article/view/1323.