Till Alex, Forrester Andrew, Exworthy Tim
1 Leicestershire, Northamptonshire & Rutland Foundation School, Health Education East Midlands, NG11 6JS, UK.
2 South London and Maudsley NHS Foundation Trust and Department of Forensic and Neurodevelopmental Science, Institute of Psychiatry, King's College London, London, SE5 8AF, UK.
J R Soc Med. 2014 May;107(5):179-182. doi: 10.1177/0141076814523949.