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Wilcox I, Freedman SB, Allman KC, Collins FL, Leitch JW, Kelly DT, Harris PJ.Wilcox I, et al. Among authors: freedman sb.J Am Coll Cardiol. 1991 Sep;18(3):677-83. doi: 10.1016/0735-1097(91)90789-c.J Am Coll Cardiol. 1991.PMID: 1869731Free article.
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