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Roberts WC, Lachman AS.Roberts WC, et al. Among authors: lachman as.Am Heart J. 1979 Jul;98(1):56-62. doi: 10.1016/0002-8703(79)90320-x.Am Heart J. 1979.PMID: 453012
Cohen M, Pocock WA, Lakier JB, McLaren MJ, Lachman AS, Barlow JB.Cohen M, et al. Among authors: lachman as.Am Heart J. 1978 Jun;95(6):697-701. doi: 10.1016/0002-8703(78)90498-2.Am Heart J. 1978.PMID: 655083