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Fida N, Loebe M, Estep JD, Guha A.Fida N, et al. Among authors: estep jd.Methodist Debakey Cardiovasc J. 2015 Jan-Mar;11(1):18-23. doi: 10.14797/mdcj-11-1-18.Methodist Debakey Cardiovasc J. 2015.PMID: 25793025Free PMC article.Review.