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Schneider JR, Helenowski IB, Jackson CR, Verta MJ, Zamor KC, Patel NH, Kim S, Hoel AW; Society for Vascular Surgery Vascular Quality Initiative and the Mid-America Vascular Study Group.Schneider JR, et al.J Vasc Surg. 2015 May;61(5):1216-22. doi: 10.1016/j.jvs.2015.01.049.J Vasc Surg. 2015.PMID: 25925539Free PMC article.