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Estes NA 3rd, Michaud G, Zipes DP, El-Sherif N, Venditti FJ, Rosenbaum DS, Albrecht P, Wang PJ, Cohen RJ.Estes NA 3rd, et al. Among authors: cohen rj.Am J Cardiol. 1997 Nov 15;80(10):1314-8. doi: 10.1016/s0002-9149(97)00694-2.Am J Cardiol. 1997.PMID: 9388105Clinical Trial.