Danchaivijitr C, Kennard C
Department of Visual Neuroscience, Division of Neuroscience and Psychological Medicine, Imperial College London, Charing Cross Campus, St Dunstan's Road, London W6 8RP, UK.
J Neurol Neurosurg Psychiatry. 2004 Dec;75 Suppl 4(Suppl 4):iv24-31. doi: 10.1136/jnnp.2004.053413.