1. Division of Clinical Psychology, University of
Liverpool, Liverpool, UK
2. Departments of Anaesthesia, Royal Liverpool
University Hospital, Liverpool, UK
3. Outcomes Unit, Musgrave Park Hospital,
Belfast, UK
4. Department of Orthopaedics, Musgrave Park
Hospital, Belfast, UK
5. Orthopaedics, Royal Liverpool University
Hospital, Liverpool, UK
6. Department of Anaesthesia, University of
London, London, UK