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Vitellas KM, Enns RA, Keogan MT, Freed KS, Spritzer CE, Baillie J, Nelson RC.Vitellas KM, et al. Among authors: keogan mt.AJR Am J Roentgenol. 2002 Feb;178(2):327-34. doi: 10.2214/ajr.178.2.1780327.AJR Am J Roentgenol. 2002.PMID: 11804887
Keogan MT, McDermott VG, Paulson EK, Sheafor DH, Frederick MG, de Long DM, Nelson RC.Keogan MT, et al.Radiology. 1997 Nov;205(2):513-8. doi: 10.1148/radiology.205.2.9356637.Radiology. 1997.PMID: 9356637