Forbes, H (2020). Therapy Code List - Antiviral BNF Codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001594.

Pembrey, L, Cunha, S and Santorelli, G (2022). Clinical code lists – Asthma, Eczema and Hay fever. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00003098.

Schmidt, SAJ and Langan, S (2019). Therapy Code List - Nicotine Replacement Therapy - BNF Codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001256.

Wing, K and Quint, JK (2020). Therapy codelist - Oxygen therapy (exclusion criteria). [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001644.

Wong, A, Mansfield, KE and Langan, S (2019). Therapy Code List - Treatment for Atopic Eczema - BNF Codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001254.