(2014). Can analyses of electronic patient records be independently and externally validated? The effect of statins on the mortality of patients with ischaemic heart disease: a cohort study with nested case-control analysis. BMJ Open. http://doi.org/10.1136/bmjopen-2014-004952.
(2014). ClinicalCodes: an online clinical codes repository to improve the validity and reproducibility of research using electronic medical records. PLoS One. http://doi.org/10.1371/journal.pone.0099825.
(2015). Glucose, blood pressure and cholesterol levels and their relationships to clinical outcomes in type 2 diabetes: a retrospective cohort study. Diabetologia. http://doi.org/10.1007/s00125-014-3473-8.
(2015). Can analyses of electronic patient records be independently and externally validated? Study 2\textendashthe effect of beta-adrenoceptor blocker therapy on cancer survival: a retrospective cohort study. BMJ Open. http://doi.org/10.1136/bmjopen-2014-007299.
(2016). Modelling Conditions and Health Care Processes in Electronic Health Records: An Application to Severe Mental Illness with the Clinical Practice Research Datalink. PLoS One. http://doi.org/10.1371/journal.pone.0146715.
(2016). Associations between exemption and survival outcomes in the UK\textquoterights primary care pay-for-performance programme: a retrospective cohort study. BMJ Qual Saf. http://doi.org/10.1136/bmjqs-2015-004602.
(2017). rEHR: An R package for manipulating and analysing Electronic Health Record data. PLoS One. http://doi.org/10.1371/journal.pone.0171784.
(2017). Incidence, prevalence and mortality of patients with psoriasis: a U.K. population-based cohort study. Br J Dermatol. http://doi.org/10.1111/bjd.15021.
(2017). Longitudinal multiple imputation approaches for body mass index or other variables with very low individual-level variability: the mibmi command in Stata. BMC Res Notes. http://doi.org/10.1186/s13104-016-2365-z.
(2018). ADHD in the United Kingdom: Regional and Socioeconomic Variations in Incidence Rates Amongst Children and Adolescents (2004-2013). J Atten Disord. http://doi.org/10.1177/1087054715613441.