Iwagami, M, Caplin, B, Smeeth, L, Tomlinson, LA and Nitsch, D (2018). Clinical Codelist - Read codes for stroke and transient ischaemic attack. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00000872.

Iwagami, M, Caplin, B, Smeeth, L, Tomlinson, LA and Nitsch, D (2018). Therapy Codelist - BNF codes for anti-diabetics. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00000873.