Joe is a UCLH NIHR Biomedical Research Centre Senior Clinical Fellow the UCL Division of Psychiatry and a Consultant Psychiatrist in Camden and Islington Foundation Trust. He uses routine data from primary and secondary care electronic health records and population cohorts to further our understanding of the epidemiology of mental health problems. He has completed a number of studies of adverse effects of psychotropic medications. He is also interested in the pharmacoepidemiology and physical health effects in severe mental illness, and the social determinants of severe mental health problems. He is Trainee Editor of BJPsych.