Pereira NF, Gifford HC, Pretorius PH, Farncombe T, Smyczynski M, Licho R, Schneider P, King MA. An Evaluation of Iterative Reconstruction Strategies on Mediastinal Lesion Detection Using Hybrid Ga-67 SPECT Images. IEEE Nucl Sci Symp Conf Rec (1997). 2007; 5:3486-3490.