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Ceron W, Lozada-Requena I, Ventocilla K, Jara S, Pinto M, Cabello M, Aguilar JL.Ceron W, et al.Rev Peru Med Exp Salud Publica. 2016 Oct-Dec;33(4):758-771. doi: 10.17843/rpmesp.2016.334.2563.Rev Peru Med Exp Salud Publica. 2016.PMID: 28327848Free article.Spanish.