Aman, K.S. and Alsaadi, M.B.M. 2016. Epidemiological and clinical characteristics of patients with unstable angina and critical coronary stenosis detected by angiography. University of Aden Journal of Natural and Applied Sciences. 20, 1 (Apr. 2016), 181–191. DOI:https://doi.org/10.47372/uajnas.2016.n1.a14.