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McNab D, Khan SN, Sharples LD, Ryan JY, Freeman C, Caine N, Tait S, Hardy I, Schofield PM.McNab D, et al. Among authors: tait s.Eur Heart J. 2006 May;27(9):1048-53. doi: 10.1093/eurheartj/ehi827. Epub 2006 Mar 22.Eur Heart J. 2006.PMID: 16554313Clinical Trial.