[1] Univ Plymouth, Clin Psychol, Fac Hlth & Social Work, Sch Appl Psychosocial Studies, Plymouth, Devon, England
[2] Univ Exeter, Sch Psychol, Psychol, Exeter, Devon, England
[3] Royal Devon & Exeter NHS Fdn Healthcare Trust, Matron Haemodialysis Serv, Exeter, Devon, England
[4] UCL, Med Sch, Div Res Strateg, Behav Med,Unit Behav Med, London, England
[5] Royal Devon Exeter Hosp, Peninsula Coll Med & Dent, Exeter, Devon, England