1. MRC/CSO Social and Public Health Sciences Unit; Institute of Health and Well Being, University of Glasgow; Glasgow UK
2. Faculty Health and Wellbeing, School of Sport, Health and Community; University of Winchester; Winchester UK
3. College of Health Sciences; University of Wisconsin-Milwaukee; Milwaukee Wisconsin USA
4. Division of Health Sciences, Warwick Medical School; University of Warwick; Coventry UK
5. School of Nursing and Midwifery; Queen's University Belfast; Belfast UK
6. REHPA, The Danish Knowledge Centre for Rehabilitation and Palliative Care; Odense University Hospital; Nyborg Denmark
7. Department of Clinical Research; University of Southern Denmark; Odense Denmark
8. MRC/CSO Social and Public Health Sciences Unit & Robertson Centre for Biostatistics, Institute of Health and Well Being; University of Glasgow; Glasgow UK
9. National Institute of Public Health; University of Southern Denmark; Copenhagen Denmark