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Spirito P, Maron BJ.Spirito P, et al. Among authors: maron bj.J Am Coll Cardiol. 1989 Mar 15;13(4):820-3. doi: 10.1016/0735-1097(89)90222-2.J Am Coll Cardiol. 1989.PMID: 2522461Free article.
Udelson JE, Bonow RO, O'Gara PT, Maron BJ, Van Lingen A, Bacharach SL, Epstein SE.Udelson JE, et al. Among authors: maron bj.Circulation. 1989 May;79(5):1052-60. doi: 10.1161/01.cir.79.5.1052.Circulation. 1989.PMID: 2785441
Lewis JF, Maron BJ.Lewis JF, et al. Among authors: maron bj.J Am Coll Cardiol. 1989 Jan;13(1):36-45. doi: 10.1016/0735-1097(89)90545-7.J Am Coll Cardiol. 1989.PMID: 2909578Free article.