(2014). Validation of chronic obstructive pulmonary disease recording in the Clinical Practice Research Datalink (CPRD-GOLD). BMJ Open. http://doi.org/10.1136/bmjopen-2014-005540.
(2016). Validation of the Recording of Acute Exacerbations of COPD in UK Primary Care Electronic Healthcare Records. PLoS One. http://doi.org/10.1371/journal.pone.0151357.
(2016). Recording of hospitalizations for acute exacerbations of COPD in UK electronic health care records. Clin Epidemiol. http://doi.org/10.2147/clep.s117867.
(2019). Common mental disorders within chronic inflammatory disorders: a primary care database prospective investigation. Ann Rheum Dis. http://doi.org/10.1136/annrheumdis-2018-214676.