Implantes cocleares en personas postlinguales: resultados durante los primeros cinco anos de evolucion [Cochlear implants in post-lingual persons: results during the first five years of the clinical course] - Manrique, M J; Espinosa, J M; Huarte, A; Molina, M; García-Tapia, R; Artieda, J (Acta Otorrinolaringol Esp, 1998)