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Ditchfield MR, Grattan-Smith JD, de Campo JF, Hutson JM.Ditchfield MR, et al.AJR Am J Roentgenol. 1995 May;164(5):1233-5. doi: 10.2214/ajr.164.5.7717237.AJR Am J Roentgenol. 1995.PMID: 7717237