Long-term effects on the quality of life following cochlear implant treatment in older patients. - Issing C; Holtz S; Loth AG; Baumann U; Pantel J; Stöver T (European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2022)