C. Talero-Gutiérrez, L. Romero, I. Carvajalino, and M. Ibáñez, “Epidemiology of prelingual sensorineural hearing impairment at a children’s center in Bogotá, Colombia between 1997 and 2008”, Colomb Med, vol. 42, no. 2, pp. 199–206, Jun. 2011.