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Berrazueta JR, Salas E, Ochoteco A, Poveda JJ, Sánchez de Vega MJ.Berrazueta JR, et al. Among authors: ochoteco a.Rev Esp Cardiol. 1993 Jan;46(1):10-4.Rev Esp Cardiol. 1993.PMID: 8430233Clinical Trial.Spanish.