1. School of Health and Social Care, Sighthill Campus, Sighthill Court, Edinburgh Napier University, Edinburgh EH11 4BN, UK
2. Sydney Nursing School, Charles Perkins Centre, University of Sydney, Johns Hopkins Road, Sydney, NSW 2006, Australia
3. Division of Psychology, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, UK
4. Centre for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
5. College of Medicine and Veterinary Medicine, University of Edinburgh, Usher Institute, Edinburgh EH16 4UX, UK
6. Institute of Cardiovascular and Medical Sciences, University of Glasgow G12 8TA, UK
7. School of Health in Social Science, Old Medical Quad, Teviot Place, University of Edinburgh, Edinburgh EH8 9AG, UK