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Buckwalter KA, Rydberg J, Kopecky KK, Crow K, Yang EL.Buckwalter KA, et al. Among authors: rydberg j.AJR Am J Roentgenol. 2001 Apr;176(4):979-86. doi: 10.2214/ajr.176.4.1760979.AJR Am J Roentgenol. 2001.PMID: 11264094No abstract available.