Walker, J, Grint, D, Strongman, H, Eggo, RM, Peppa, M, Minassian, C, Mansfield, KE, Rentsch, C, Douglas, IJ, Mathur, R, Wong, A, Quint, JK, Andrews, N, Lopez-bernal, J, Scott, A, Ramsay, M, Smeeth, L and McDonald, H (2020). UK prevalence of risk factors for severe COVID-19 disease, by age and region: point prevalence estimates in 2019 and 2014, using electronic health records. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001833.

Peppa, M, Thomas, S, Kempley, S, Mangtani, P and Walker, J (2020). Codelists for: "Seasonal influenza vaccination during pregnancy and the risk of major congenital malformations in live-born infants: A 2010-2016 historical cohort study". [Project]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001629.

Thomas, S, Peppa, M and Walker, J (2020). Clinical codelist - Influenza vaccination codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001626.

Thomas, S, Peppa, M and Walker, J (2020). Immunisation codelist - Influenza vaccination codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001627.

Thomas, S, Peppa, M and Walker, J (2020). Therapy codelist - Influenza vaccination codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001628.

Grint, D, McDonald, H, Walker, J, Amirthalingam, G, Andrews, N and Thomas, SL (2019). Code lists for "Inadvertent administration of live zoster vaccine to immunosuppressed individuals; vaccine-related disease is a rare occurrence". [Project]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001336.

Grint, D, McDonald, H, Walker, J, Amirthalingam, G, Andrews, N and Thomas, SL (2019). Post-Vaccine Zoster Disease - ICD-10 Codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001339.

Grint, D, McDonald, H, Walker, J, Amirthalingam, G, Andrews, N and Thomas, SL (2019). Post-Vaccine Zoster Disease - Read Codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001338.