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D
Davidson, J and Strongman, H (2022). Clinical codelist - CPRD Aurum - Migraine. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00002818.
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Strongman, H (2019). Covariate Code List - Migraine. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001135.