1. Centre for Welfare and Social Issues. The Nordic definition of deafblindness; 2016 [Internet]. Available from: http://www.kuurosokeat.fi/tiedosto/nordic_definition.pdf [cited 2024, Feb 29].
2. European Deafblind Network. European Deafblind Indicators: Mapping opportunities for deafblind people across Europe; 2014 [Internet]. Available from: https://siketvak.hu/wp-content/uploads/2014/07/Final-Report-Deafblind-Indicators.pdf [cited 2024, Feb 29].
3. United Nations Department of Economic and Social Affairs Population Division. World Population Prospects 2022: Summary of Results - DESA/POP/2022/TR/NO. 3
4. 2022 [Internet]. Available from: https://www.un.org/development/desa/pd/sites/www.un.org.development.desa.pd/files/wpp2022_summary_of_results.pdf [cited 2024, Feb 29].
5. Robertson J, Emerson E. Estimating the number of people with co-occurring vision and hearing impairments in the UK. Centre for Disability Research; 2010 [Internet]. Available from: https://www.research.lancs.ac.uk/portal/en/publications/estimating-the-number-of-people-with-cooccurring-vision-and-hearing-impairments-in-the-uk(e25a9d72-82c0-4040-aee7-bb43a4bb773b).html [cited 2024, Feb 29].