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Bashir Y, Paul VE, Griffith MJ, Sneddon JF, Farrell TG, Ward DE, Camm AJ.Bashir Y, et al. Among authors: griffith mj.Am Heart J. 1992 Nov;124(5):1233-40. doi: 10.1016/0002-8703(92)90405-k.Am Heart J. 1992.PMID: 1442491Clinical Trial.