[1] Kings Coll London, Inst Psychiat, United Kingdom London Psychosocial Grp, Dept Psychol & Canc Res, London WC2R 2LS, England
[2] Mt Vernon Hosp, Lynda Jackson MacMillan Ctr, Northwood HA6 2RN, Middx, England
[3] Brunel Univ, Sch Hlth Sci & Social Care, Isleworth UB8 3PH, Middx, England