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Farrell BJ, Prilutsky BI, Ritter JM, Kelley S, Popat K, Pitkin M.Farrell BJ, et al.J Biomed Mater Res A. 2014 May;102(5):1305-15. doi: 10.1002/jbm.a.34807. Epub 2013 Jun 7.J Biomed Mater Res A. 2014.PMID: 23703928Free PMC article.