Wing, K, Bhaskaran, K, Pealing, L, Root, A, Smeeth, L, Van Staa, TP, Klungel, OH, Reynolds, RF and Douglas, IJ (2017). Clinical Code List - Exclusion Codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00000600.