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Flanagan MF, Foran RB, Van Praagh R, Jonas R, Sanders SP.Flanagan MF, et al.J Am Coll Cardiol. 1988 Feb;11(2):386-95. doi: 10.1016/0735-1097(88)90107-6.J Am Coll Cardiol. 1988.PMID: 3339179Free article.