Thomas, S (2020). Code lists for: "Social determinants of pertussis and influenza vaccine uptake in pregnancy: a national cohort study using electronic health records". [Project]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001907

Thomas, S (2020). Influenza clinical risk groups 2017 version - Asthma. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001897.

Thomas, S (2020). Influenza clinical risk groups 2017 version - Chronic cardiac conditions. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001903.

Thomas, S (2020). Influenza clinical risk groups 2017 version - Chronic renal disease diagnoses. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001904.

Thomas, S (2020). Influenza clinical risk groups 2017 version - Chronic respiratory disease (not asthma). [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001902.

Thomas, S (2020). Influenza clinical risk groups 2017 version - Diabetes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001905.

Thomas, S (2020). Influenza risk groups 2017 version - Chronic liver disease. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/data.00001906.

Thomas, S (2020). COVID-19 risk group - Neurological disease codelist. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001704.

Mcdonald, H, Evans, D, Clay, S, Edelstein, M and Thomas, S (2020). Clinical risk groups for Pneumococcal Polysaccharide Vaccine. [Project]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001659.

Mcdonald, H, Evans, D, Clay, S, Edelstein, M and Thomas, S (2020). Immunisation risk group - Diabetes. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001665.

Mcdonald, H, Evans, D, Clay, S, Edelstein, M and Thomas, S (2020). Immunisation risk group - chronic kidney disease. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001664.

Mcdonald, H, Evans, D, Clay, S, Edelstein, M and Thomas, S (2020). Immunisation risk group - chronic respiratory disease without asthma. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001663.

Mcdonald, H, Evans, D, Clay, S, Edelstein, M and Thomas, S (2020). Immunisation risk group - liver disease. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00001662.

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.

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.

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.

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.

Minassian, C, Williams, R, Meeraus, WH, Smeeth, L, Campbell, OM and Thomas, S (2019). Methods to generate and validate a Pregnancy Register in the UK Clinical Practice Research Datalink primary care database. [Data Collection]. Pharmacoepidemiology & Drug Safety. https://doi.org/10.1002/pds.4811

Mansfield, KE, Douglas, IJ, Nitsch, D, Thomas, S, Smeeth, L and Tomlinson, LA (2017). ICD-10 Code List - Acute Kidney Injury. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.224.

Mansfield, KE, Douglas, IJ, Nitsch, D, Thomas, S, Smeeth, L and Tomlinson, LA (2017). Read Code List - Diabetes Mellitus. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.223.