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Seo JW, Chi DY, Dence CS, Welch MJ, Katzenellenbogen JA.Seo JW, et al. Among authors: welch mj.Nucl Med Biol. 2007 May;34(4):383-90. doi: 10.1016/j.nucmedbio.2007.01.010. Epub 2007 Mar 30.Nucl Med Biol. 2007.PMID: 17499727Free PMC article.