Berner Alison, Craven Claudia, Laskou Faidra, Graham Neil, Ingle Gordon
University College London Hospitals, London, UK;
National Hospital for Neurology and Neurosurgery, London, UK.
Clin Med (Lond). 2016 Jun 1;16 Suppl 3(Suppl 3):s2. doi: 10.7861/clinmedicine.16-3-s2.