1. The Essex Cardiothoracic Centre, Basildon and Thurrock University Hospitals NHS Foundation Trust, Basildon, United Kingdom.
2. Anglia Ruskin School of Medicine, Chelmsford, United Kingdom.
3. Department of Psychiatry, South Essex Partnership Trust, Wickford, United Kingdom.
4. Department of Cardiovascular Sciences, University of Leicester and NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, United Kingdom.
5. University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.