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Czer LS, Maurer G, Bolger AF, De Robertis M, Resser KJ, Kass RM, Lee ME, Blanche C, Chaux A, Gray RJ, et al.Czer LS, et al.Circulation. 1987 Sep;76(3 Pt 2):III108-16.Circulation. 1987.PMID: 3621533