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Harolds JA, Duszak R Jr, Strax R, Short B, Kaye AD.Harolds JA, et al.J Am Coll Radiol. 2011 Feb;8(2):99-103. doi: 10.1016/j.jacr.2010.06.028.J Am Coll Radiol. 2011.PMID: 21292184