1. Medical Research Council/Chief Scientist Office Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK
2. Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
3. Health Economics and Health Technology Assessment, University of Glasgow, Glasgow, UK
4. Australian Health Policy Collaboration, Victoria University, Melbourne, VIC, Australia
5. Department of Nursing and Community Health, Glasgow Caledonian University, Glasgow, UK
6. School of Nursing, Midwifery and Health, University of Stirling, Stirling, UK
7. Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
8. Public Health Directorate, NHS Greater Glasgow and Clyde, Glasgow, UK
9. Centre for Rural Health, University of Aberdeen, Aberdeen, UK