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Haykowsky MJ, Liang Y, Pechter D, Jones LW, McAlister FA, Clark AM.Haykowsky MJ, et al.J Am Coll Cardiol. 2007 Jun 19;49(24):2329-36. doi: 10.1016/j.jacc.2007.02.055. Epub 2007 Jun 4.J Am Coll Cardiol. 2007.PMID: 17572248Free article.