1. St. Helens and Knowsley Hospitals National Health Service Trust, Whiston Hospital, Prescot, Merseyside, United Kingdom, Department of Clinical Psychology, University of Liverpool, Liverpool, United Kingdom
2. St. Helens and Knowsley Hospitals National Health Service Trust, Whiston Hospital, Prescot, Merseyside, United Kingdom
3. Department of Clinical Psychology, University of Liverpool, Liverpool, United Kingdom