1. Sheffield Centre for Health and Related Research (ScHARR), School of Medicine and Population Health, University of Sheffield, 30 Regent Street, Regent Court, Sheffield S1 4DA, UK
2. Centre for Regional Economic and Social Research (CRESR), Sheffield Hallam University, City Campus, Howard Street, Sheffield S1 1WB, UK
3. Wakefield District Housing, Merefield House, Whistler Drive, Castleford WF10 5HX, UK
4. Pinderfields Hospital, Mid Yorkshire NHS Foundation Trust, Aberford Road, Wakefield WF1 4DG, UK
5. Clinical Research, Mid Yorkshire NHS Foundation Trust, Unit 10 Clarke Hall Farm, Aberford Road, Wakefield WF1 4DG, UK
6. Research and Development, South West Yorkshire Partnership NHS Foundation Trust, Fieldhead Hospital, Ouchthorpe Lane, Wakefield WF1 3SP, UK