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Vigneron DB, Nelson SJ, Murphy-Boesch J, Kelley DA, Kessler HB, Brown TR, Taylor JS.Vigneron DB, et al.Radiology. 1990 Dec;177(3):643-9. doi: 10.1148/radiology.177.3.2243963.Radiology. 1990.PMID: 2243963