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Cortez-Vergara C, Cruzado L, Rojas-Rojas IG, Sánchez-Fernández M, Ladd-Huarachi G.Cortez-Vergara C, et al. Among authors: cruzado l.Rev Peru Med Exp Salud Publica. 2016 Mar;33(1):100-5.Rev Peru Med Exp Salud Publica. 2016.PMID: 27384628Free article.Spanish.