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Biehl KJ, Kong FM, Dehdashti F, Jin JY, Mutic S, El Naqa I, Siegel BA, Bradley JD.Biehl KJ, et al. Among authors: el naqa i.J Nucl Med. 2006 Nov;47(11):1808-12.J Nucl Med. 2006.PMID: 17079814Free article.