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Jones KG, Brull DJ, Brown LC, Sian M, Greenhalgh RM, Humphries SE, Powell JT.Jones KG, et al. Among authors: powell jt.Circulation. 2001 May 8;103(18):2260-5. doi: 10.1161/01.cir.103.18.2260.Circulation. 2001.PMID: 11342474Clinical Trial.