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Krakoff LR, Gillespie RL, Ferdinand KC, Fergus IV, Akinboboye O, Williams KA, Walsh MN, Bairey Merz CN, Pepine CJ.Krakoff LR, et al.J Am Coll Cardiol. 2014 Jul 29;64(4):394-402. doi: 10.1016/j.jacc.2014.06.014.J Am Coll Cardiol. 2014.PMID: 25060376Free PMC article.Review.