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Link MS, Hill SL, Cliff DL, Swygman CA, Foote CB, Homoud MK, Wang PJ, Estes NA 3rd, Berul CI.Link MS, et al. Among authors: berul ci.Am J Cardiol. 1999 Jan 15;83(2):263-6, A5-6. doi: 10.1016/s0002-9149(98)00834-0.Am J Cardiol. 1999.PMID: 10073833