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Maceira AM, Prasad SK, Khan M, Pennell DJ.Maceira AM, et al. Among authors: pennell dj.Eur Heart J. 2006 Dec;27(23):2879-88. doi: 10.1093/eurheartj/ehl336. Epub 2006 Nov 6.Eur Heart J. 2006.PMID: 17088316Clinical Trial.