1. Bridgepoint Collaboratory for Research and InnovationBridgepoint Active Healthcare, Toronto, Ontario, Canada
2. Institute of Health PolicyManagement and Evaluation, University of Toronto, Toronto, Ontario, Canada
3. Institute of Health and WellbeingCollege of Social Sciences, University of Glasgow, Glasgow, UK
4. Health Experiences Research GroupNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
5. National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, The Joint Research Office, The Churchill Hospital, Headington, UK
6. Green Templeton CollegeUniversity of Oxford, Oxford, UK
7. Dalla Lana Faculty of Public Health University of Toronto, Toronto, Ontario, Canada
8. Nuffield Department of Primary Care Health Sciences University of Oxford, Oxford, UK