1. NIHR Health and Social Care Workforce Research Unit, The Policy Institute, King's College London, London, UK
2. Faculty of Social Science and Public Policy, NIHR Policy Research, The Policy Institute, KCL, London, UK
3. Faculty of Social Science and Public Policy, Unit in Health and Social Care Workforce, The Policy Institute, KCL, London, UK
4. Faculty of Social Science and Public Policy, NIHR School for Social Care Research, The Policy Institute, KCL, London, UK
5. Faculty of Social Science and Public Policy, NIHR Applied Research Collaborative (ARC) South London, The Policy Institute, KCL, London, UK
6. Faculty of Social Science and Public Policy, The Policy Institute, King's College London, London, UK