1. Faculty of Wellbeing, Education and Language Studies; The Open University in Scotland; Edinburgh UK
2. MRC/CSO Social and Public Health Sciences Unit; University of Glasgow; Glasgow UK
3. School of Health and Life Sciences; Glasgow Caledonian University; Glasgow UK
4. School of Health and Life Sciences; University of the West of Scotland; Glasgow UK
5. School of Social and Political Sciences; University of Glasgow; Glasgow UK
6. Robertson Centre for Biostatistics; University of Glasgow; Glasgow UK