Mayta-Tristán, P. et al. 2015. Is there unjust equity? for the elimination of the mandatory serums program (rural and urban margin health care service). Revista Peruana de Medicina Experimental y Salud Pública. 32, 1 (Apr. 2015), 195. DOI:https://doi.org/10.17843/rpmesp.2015.321.1597.