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Fiedler BS, De Smet AA, Kling TF Jr, Fisher DR.Fiedler BS, et al. Among authors: de smet aa.Can Assoc Radiol J. 1987 Dec;38(4):305-8.Can Assoc Radiol J. 1987.PMID: 2961767Review.
De Smet AA, Fisher DR, Graf BK, Lange RH.De Smet AA, et al.AJR Am J Roentgenol. 1990 Sep;155(3):549-53. doi: 10.2214/ajr.155.3.2117355.AJR Am J Roentgenol. 1990.PMID: 2117355