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Berlin L, Hoffman TR, Shields WF, Cox J; American College of Radiology.Berlin L, et al. Among authors: hoffman tr.J Am Coll Radiol. 2006 Apr;3(4):252-8. doi: 10.1016/j.jacr.2005.12.013.J Am Coll Radiol. 2006.PMID: 17412056Review.