Mohammed , M. K. ., S. M. . Kadam, and S. I. Essa. “Evaluation of Left Ventricle Performance in Patients With Ischemic Heart Disease Using Single Photon Emission Computed Tomography (SPECT) in Comparison With Echocardiography”. Iraqi Journal of Science, vol. 62, no. 11, Nov. 2021, pp. 3871-6, doi:10.24996/ijs.2021.62.11.8.