1. UCL Department of Nephrology; Royal Free Hospital; London UK
2. Centre for Health Services and Clinical Research, School of Life and Medical Sciences; University of Hertfordshire, College Lane Campus; Hatfield UK
3. Renal Unit, Lister Hospital, East & North Herts NHS Trust; Coreys Mill Lane; Stevenage UK
4. Oxford Health NHS Foundation Trust; Oxford 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, Institute of Psychiatry, Psychology and Neuroscience; King's College London; London UK