1. Faculty of Nursing and Health Sciences, University of Sunderland, Sunderland, UK
2. Public Health Directorate, NHS Grampian, Aberdeen, UK
3. Institute of Health Sciences, School of Medicine, University of Aberdeen, Aberdeen, UK
4. Faculty of Health and Life Sciences, Northumbria University, Newcastle, UK
5. Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
6. Faculty of Health Sciences and Wellbeing, University of Sunderland, Sunderland, UK