R. Zenteno-Cuevas, A. Rubi, J. Fuentes-Dominguez, J. L. Lara-Gonzalez, and A. Escobar-Mesa, “Dynamics of multidrug resistant tuberculosis in Veracruz, México between 2002 and 2008”, J Infect Dev Ctries, vol. 4, no. 11, pp. 776–778, Oct. 2010.