1. MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, UK;
2. Institute for Social Science Research, The University of Queensland, Brisbane, Queensland, Australia;
3. School of Public Health, University of Montréal, Montréal, QC, Canada;
4. Centre for Biomedicine, Self and Society, Usher Institute, University of Edinburgh, Edinburgh, UK;
5. School of Population and Public Health, The University of British Columbia, Vancouver, BC, Canada