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Engel-Nitz NM, Sander SD, Harley C, Rey GG, Shah H.Engel-Nitz NM, et al.Vasc Health Risk Manag. 2010 Oct 5;6:905-13. doi: 10.2147/VHRM.S10851.Vasc Health Risk Manag. 2010.PMID: 20957133Free PMC article.