1. Institute of Health & Society, Newcastle University, Newcastle upon Tyne, UK
2. School of Applied Social Studies, The Robert Gordon University, Aberdeen, UK
3. UKCRC Centre for Diet and Activity Research (CEDAR), MRC Epidemiology Unit, School of Clinical Medicine, University of Cambridge, Cambridge, UK
4. School of Psychology, University of Aberdeen, Aberdeen, UK
5. Fuse, UKCRC Centre for Translational Research in Public Health, Newcastle University, Newcastle upon Tyne, UK