Affiliation: | 1. Centre for Health Services Research, School of Health Sciences, City, University of London, London, UK;2. East London NHS Foundation Trust, London, UK;3. Centre for Mental Health Research, School of Health Sciences, City, University of London, London, UK;4. Centre for Research in Primary and Community Care (CRIPACC), School of Health and Social Work, University of Hertfordshire, Hatfield, UK |