[1] Manchester Metropolitan Univ, Dept Social Care & Social Work, Manchester, England
[2] Univ Kent, Tizard Ctr, Canterbury, England
[3] Univ Glasgow, Inst Hlth & Wellbeing, Glasgow, Scotland
[4] Ulster Univ, Inst Nursing & Hlth Res, Belfast, North Ireland
[5] Univ South Wales, Unit Dev Intellectual & Dev Disabil, Pontypridd, Wales
[6] Univ Warwick, Ctr Res Intellectual & Dev Disabil, Coventry, England