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[A cost-benefit analysis of a Mexican food-support program].
Ventura-Alfaro CE, Gutiérrez-Reyes JP, Bertozzi-Kenefick SM, Caldés-Gómez N. Ventura-Alfaro CE, et al. Among authors: bertozzi kenefick sm. Rev Salud Publica (Bogota). 2011 Jun;13(3):373-85. Rev Salud Publica (Bogota). 2011. PMID: 22030991 Free article. Spanish.
[Comparative study of direct cost between open and laparoscopic cholecystectomy].
Salinas-Escudero G, Zurita-Saldaña VR, Hernández-Garduño AG, Padilla-Zárate MP, Gutiérrez-Vega R, Sastré N, Bertozzi-Kenefick SM. Salinas-Escudero G, et al. Among authors: bertozzi kenefick sm. Rev Med Inst Mex Seguro Soc. 2011 Jul-Aug;49(4):353-60. Rev Med Inst Mex Seguro Soc. 2011. PMID: 21982182 Spanish.