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Ruzek KA, Bancroft LW, Peterson JJ.Ruzek KA, et al. Among authors: peterson jj.Radiol Clin North Am. 2006 May;44(3):331-41. doi: 10.1016/j.rcl.2006.02.002.Radiol Clin North Am. 2006.PMID: 16644354Review.