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Pandharipande PV, Choy G, del Carmen MG, Gazelle GS, Russell AH, Lee SI.Pandharipande PV, et al.AJR Am J Roentgenol. 2009 Mar;192(3):802-14. doi: 10.2214/AJR.08.1224.AJR Am J Roentgenol. 2009.PMID: 19234280