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Troyer A, Saloner D, Pan XM, Velez P, Rapp JH; Assessment of Carotid Stenosis by Comparison with Endarterectomy Plaque Trial Investigators.Troyer A, et al. Among authors: pan xm.J Vasc Surg. 2002 Apr;35(4):741-7. doi: 10.1067/mva.2002.121210.J Vasc Surg. 2002.PMID: 11932673Free article.