[1] Derbyshire Healthcare NHS Fdn Trust, Kingsway Hosp, Ctr Selfharm & Suicide Prevent Res, Res & Dev Ctr, Derby, England
[2] Univ Nottingham, Sch Psychol, Selfharm Res Grp, Univ Pk Nottingham, Nottingham, England
[3] Greater Manchester Mental Hlth NHS Fdn Trust, Manchester, England
[4] Univ Manchester, Ctr Mental Hlth & Safety, Manchester Acad Hlth Sci Ctr, Greater Manchester Patient Safety Translat Res Ctr, Manchester, England
[5] Univ Manchester, Ctr Mental Hlth & Safety, Manchester Acad Hlth Sci Ctr, Manchester, England
[6] Univ Oxford, Warneford Hosp, Ctr Suicide Res, Dept Psychiat, Oxford, England
[7] Oxford Hlth NHS Fdn Trust, Warneford Hosp, Oxford, England
[8] Warneford Hosp, Univ Dept Psychiat, Ctr Suicide Res, Oxford OX3 7JX, England