Al Ashwal, S (2023). Rapid Assessment of Avoidable Blindness Dataset: Qatar (2023). [Data Collection]. London School of Hygiene & Tropical Medicine RAAB Repository. https://doi.org/10.17037/RAABDATASET.e710bcd2-a7dd-45e0-a993-ff2cf39c2f04.

International Centre for Eye Health (2025). Rapid Assessment of Avoidable Blindness Report: Qatar (2023). [Data Collection]. London School of Hygiene & Tropical Medicine RAAB Repository. https://doi.org/10.17037/RAABREPORT.e710bcd2-a7dd-45e0-a993-ff2cf39c2f04.

Seeley, J, Mugisha, J and Suzman, R (2014). SAGE Well-Being of Older People Study-2013, Wave 2. [Data Collection]. WHO Multi-Country Studies Data Archive. https://apps.who.int/healthinfo/systems/surveydata/index.php/catalog/210