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Jackson WF, Tryfonidis M, Cooke PH, Sharp RJ.Jackson WF, et al. Among authors: sharp rj.J Bone Joint Surg Br. 2007 Jul;89(7):925-7. doi: 10.1302/0301-620X.89B7.19396.J Bone Joint Surg Br. 2007.PMID: 17673587Free article.