Ramírez-Vélez, R., Matínez-Torres, J. and Meneses-Echavez, J.F. (2014) “Prevalence and demographic factors associated with ferritin deficiency in colombian children, 2010”, Revista Peruana de Medicina Experimental y Salud Pública, 31(2). doi:10.17843/rpmesp.2014.312.40.