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Cobeta García JC, López-Longo FJ, Monteagudo Sáez I, Núñez Olarte JM, Fernández García JE, Rivera Redondo J.Cobeta García JC, et al.Rev Clin Esp. 1990 May;186(8):388-90.Rev Clin Esp. 1990.PMID: 2236768Spanish.