1 Department of Forensic and Neurodevelopmental Sciences, King's College London, De Crespigny Park, Denmark Hill, London SE5 8AF, UK. Electronic address: deirdre.macmanus@kcl.ac.uk.
2 Anglia Ruskin University, and the Centre for Mental Health, London.
3 East Midlands Psychology Services, HM Prison Service, Leicester.
4 King's Centre for Military Health Research, King's College London, London, UK.