Al-Najjar, Hassan Yousif. “The Impact Of Severity Of Ischaemia In Acute Coronary Syndrome On The Extent Of Coronary Artery Disease At Angiography The Role Of Past Ischaemia”. Journal of the Faculty of Medicine Baghdad, vol. 48, no. 3, Oct. 2006, pp. 236-43, https://doi.org/10.32007/jfacmedbagdad.4831487.