Peppa, M, Thomas, S, Kempley, S and Mangtani, P (2020). Codelists for: "Identifying major congenital malformations in anonymised UK electronic health records: the value of primary care, hospital admissions and mortality data". [Project]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001630.

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.

Peppa, M, Thomas, S, Kempley, S and Mangtani, P (2020). Clinical codelist - Congenital malformation codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001623.

Peppa, M, Thomas, S, Kempley, S and Mangtani, P (2020). HES diagnosis codelist - Congenital malformation codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001624.

Peppa, M, Thomas, S, Kempley, S and Mangtani, P (2020). HES procedures codelist - Congenital malformation codes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001625.