Professor Banerjee works across two busy tertiary care settings: University College London Hospitals and Barts Health NHS Trusts with both inpatient and outpatient commitments. Although he subspecialised in heart failure, he has ongoing practice in all aspects of acute general cardiology, with particular interest in atrial fibrillation (both diagnosis and management), cardiovascular prevention and hypertension. His clinical work very much informs his research and vice versa, whether evaluation of medical technology or the ethics of large-scale use of patient data. To see him in his NHS clinics, referral is via your general practititoner (GP).