Mathur, R, Wong, A and Tomlinson, LA (2023). Diagnosis codelist - retinopathy codes (icd-10). [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00003261.

Mathur, R, Wong, A and Tomlinson, LA (2023). Diagnosis codelist - retinopathy codes (medcodes). [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00003260.

Mathur, R, Wong, A and Tomlinson, LA (2023). Diagnosis codelist - retinopathy codes (opcs). [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00003262.

Wilkinson, S, Douglas, IJ, Williamson, E, Stirnadel-Farrant, H, Fogarty, D, Pokrajac, A, Smeeth, L and Tomlinson, LA (2018). Code lists for: Intensification of treatment of type 2 diabetes mellitus after metformin monotherapy in UK primary care. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.286.