1. UCL Centre for Nephrology, Royal Free Hospital; London UK
2. Centre for Health Services and Clinical Research, School of Life and Medical Sciences, University of Hertfordshire; Hatfield UK
3. Renal Unit, Lister Hospital, East & North Herts NHS Trust; Stevenage UK
4. Hertfordshire Partnership University NHS Foundation Trust, Rosanne House; Welwyn Garden City UK
5. Southend University Hospital NHS Foundation Trust; Essex UK
6. Department of Renal Medicine; Queen Elizabeth Hospital; Birmingham UK
7. Health Psychology Section, Psychology Department, King's College London; London UK
8. Department of Psychological Medicine; Weston Education Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London; London UK