¹ Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK

² Division of Health and Social Care Research, Kings College, London, UK

³ Department of Health Sciences, University of Leicester, Leicester, UK

⁴ National Patient Safety Agency, London, UK

⁵ School of Management, University of St Andrews, St Andrews, UK

⁶ National Institute for Health Research Service Delivery and Organisation Programme, London School of Hygiene and Tropical Medicine, London, UK

⁷ Centre for Evidence-Based Medicine, Department of Primary Health Care, University of Oxford, Oxford, UK

⁸ Institute of Work Psychology, University of Sheffield, Sheffield, UK

⁹ General Practice and Primary Care Research Unit, University of Cambridge, Cambridge, UK

¹⁰ National Institute for Health and Clinical Excellence, London, UK

¹¹ NIHR PenCLAHRC, Peninsula College of Medicine and Dentistry, Universities of Exeter and Plymouth, UK

¹² Institute of Psychiatry, Kings College, London, UK

¹³ Centre for Outcomes Research and Effectiveness, Department of Psychology, University College London, London, UK

¹⁴ Service Transformation, NHS Institute for Innovation and Improvement, Coventry House, University of Warwick Campus, Coventry, UK

¹⁵ School of Healthcare Sciences, Bangor University, Bangor, UK

¹⁶ National Primary Care Research and Development Centre, University of Manchester, Manchester, UK