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Povés E, Moreno Otero R, Estrada A, Del Pozo A, Ruiz Ayuso F, Cantero J, Pajares JM.Povés E, et al. Among authors: pajares jm.Rev Esp Enferm Apar Dig. 1988 Jan;73(1):17-21.Rev Esp Enferm Apar Dig. 1988.PMID: 3363200Spanish.No abstract available.