1. a Barts and the London School of Medicine and Dentistry , Turner Street, London , E1 2AD , UK
2. b Centre for Psychiatry, Wolfson Institute of Preventive Medicine, Barts & the London School of Medicine and Dentistry , Queen Mary University of London Charterhouse Square , London , EC1M 6BQ , UK
3. c Centre for Behavioural and Social Sciences in Medicine , University College London , Charles Bell House, 67–73 Riding House Street, London , W1W 7EJ , UK