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López-Moreno S, Martínez-Ojeda RH, López-Arellano O, Jarillo-Soto E, Castro-Albarrán JM.López-Moreno S, et al.Salud Publica Mex. 2011;53 Suppl 4:445-57.Salud Publica Mex. 2011.PMID: 22282207Spanish.