M. A. Mohammed, A. R. Bairam, M. H. Al-Kuraishi, and A. A. Muhammed, “Initial Experience of Dobutamine Stress Echocardiography in Ibn Al-Bitar Hospital for Cardiac Surgery”, JFacMedBagdad, vol. 51, no. 3, pp. 239–244, Oct. 2009, doi: 10.32007/jfacmedbagdad.5131116.