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Bourque JM, Holland BH, Watson DD, Beller GA.Bourque JM, et al. Among authors: watson dd.J Am Coll Cardiol. 2009 Aug 4;54(6):538-45. doi: 10.1016/j.jacc.2009.04.042.J Am Coll Cardiol. 2009.PMID: 19643316Free PMC article.