%0 Journal Article %T Prediction of the left ventricular ejection fraction using cavity-to-myocardium count ratio and perfusion scores in myocardial perfusion SPECT %A Dabbagh Kakhki %A S.R.Zakavi %A Jabbari Nooghabi, Hadi %J Hellenic Journal of Nuclear Medicine %@ 1790-5427 %D 2004