1. Research Officer, Swansea Centre for Health Economics, Swansea University, Swansea, UK
2. Programme Manager/Research Support Officer, School of Medicine, University of Nottingham, Nottingham, UK
3. Consultant and Director, Royal Derby Hospital, University Hospitals of Derby and Burton NHS FT, Derby, UK
4. Professor, Centre for Academic Primary Care, University of Nottingham, Nottingham, UK
5. School of Psychology, Cardiff University, Cardiff, UK
6. Professor, Swansea Centre for Health Economics, Swansea University, Swansea, UK