RT Journal Article SR Electronic T1 Comparing Filtered Backprojection and Ordered-Subsets Expectation Maximization for Small-Lesion Detection and Localization in 67Ga SPECT JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1391 OP 1399 VO 41 IS 8 A1 Wells, R. Glenn A1 King, Michael A. A1 Simkin, Peter H. A1 Judy, Philip F. A1 Brill, A. Bertrand A1 Gifford, Howard C. A1 Licho, Robert A1 Pretorius, P. Hendrik A1 Schneider, Peter B. A1 Seldin, David W. YR 2000 UL http://jnm.snmjournals.org/content/41/8/1391.abstract AB