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Barron HV, Harr SD, Radford MJ, Wang Y, Krumholz HM.Barron HV, et al. Among authors: harr sd.J Am Coll Cardiol. 2001 Nov 15;38(6):1654-61. doi: 10.1016/s0735-1097(01)01613-8.J Am Coll Cardiol. 2001.PMID: 11704377Free article.