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Caballero Plasencia AM, López Callejas C, Valenzuela Barranco M, Montero García M, Muros Navarro MC, de los Reyes García MC, Sánchez Martínez H, Bellot García V.Caballero Plasencia AM, et al.Med Clin (Barc). 1991 Apr 6;96(13):481-5.Med Clin (Barc). 1991.PMID: 2051789Spanish.