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Canon CL, Baron TH, Morgan DE, Dean PA, Koehler RE.Canon CL, et al. Among authors: baron th.AJR Am J Roentgenol. 1997 Jan;168(1):199-205. doi: 10.2214/ajr.168.1.8976946.AJR Am J Roentgenol. 1997.PMID: 8976946