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Flachskampf FA, Weyman AE, Gillam L, Liu CM, Abascal VM, Thomas JD.Flachskampf FA, et al. Among authors: weyman ae.J Am Coll Cardiol. 1990 Aug;16(2):396-404. doi: 10.1016/0735-1097(90)90592-d.J Am Coll Cardiol. 1990.PMID: 2373818Free article.