1. World Health Organization: WHO global estimates on prevalence of hearing loss. Mortality and Burden of Diseases and Prevention of Blindness and Deafness (2012)
2. Löhler, J., Cebulla, M., Shehata-Dieler, W., Volkenstein, S., Völter, C., Walther, L.E.: Hearing impairment in old age. Deutsches Ärzteblatt Int, Dtsch Arztebl Int 116, 301–310 (2019)
3. United Nations, Department of Economic and Social Affairs, World Population Ageing 2019 Highlights (2019)
4. Blevins, N.: Presbycusis. UpToDate, Wolters Kluwer (2018)
5. Li-Korotky, H.S.: Age-related hearing loss: quality of care for quality of life. Gerontologist 52(2), 265–271 (2012)