1. Centre for Cardiovascular Imaging, UCL Institute of Cardiovascular Science LondonUK
2. Chorleywood Health Centre ChorleywoodUK
3. Department of Information Systems and Computing, Brunel University UxbridgeUK
4. Department of Psychiatry, Douglas Institute, McGill University Montreal, QCCanada
5. Centre for Cardiovascular Prevention & Outcomes, UCL Institute of Cardiovascular Science LondonUK