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De la Cruz-Góngora V, Villalpando S, Rodríguez-Oliveros G, Castillo-García M, Mundo-Rosas V, Meneses-Navarro S.De la Cruz-Góngora V, et al.Salud Publica Mex. 2012 Mar-Apr;54(2):158-66. doi: 10.1590/s0036-36342012000200012.Salud Publica Mex. 2012.PMID: 22535175