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Caridi JG, West JH, Stavropoulos SW, Hawkins IF Jr.Caridi JG, et al. Among authors: stavropoulos sw.AJR Am J Roentgenol. 2000 Feb;174(2):363-6. doi: 10.2214/ajr.174.2.1740363.AJR Am J Roentgenol. 2000.PMID: 10658706Clinical Trial.