1 Department of Epidemiology and Public Health, University College London, London WC1E 6BT, UK; Clinicum, Faculty of Medicine, and Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland. Electronic address: m.kivimaki@ucl.ac.uk.
2 Clinicum, Faculty of Medicine, and Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland.
3 National Centre for Cardiovascular Prevention and Outcomes, University College London, London, UK.