(2023). Referral to the NHS Diabetes Prevention Programme and conversion from nondiabetic hyperglycaemia to type 2 diabetes mellitus in England: A matched cohort analysis. Plos Med, 20, e1004177. http://doi.org/10.1371/journal.pmed.1004177.
(2022). Clinical code usage in UK general practice: a cohort study exploring 18 conditions over 14 years. Bmj Open, 12, e051456. http://doi.org/10.1136/bmjopen-2021-051456.
(2013). Recorded quality of primary care for patients with diabetes in England before and after the introduction of a financial incentive scheme: a longitudinal observational study. BMJ Qual Saf. http://doi.org/10.1136/bmjqs-2012-001033.
(2014). Withdrawing performance indicators: retrospective analysis of general practice performance under UK Quality and Outcomes Framework. Bmj. http://doi.org/10.1136/bmj.g330.
(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). Primary care consultation rates among people with and without severe mental illness: a UK cohort study using the Clinical Practice Research Datalink. BMJ Open. http://doi.org/10.1136/bmjopen-2015-008650.
(2015). Inequalities in physical comorbidity: a longitudinal comparative cohort study of people with severe mental illness in the UK. BMJ Open. http://doi.org/10.1136/bmjopen-2015-009010.
(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.