Cosgrove Jeremy, Djoukhadar Ibrahim, Warren Daniel, Jamieson Stuart
Department of Neurology, Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, , Leeds, West Yorkshire, UK.
Pract Neurol. 2013 Dec;13(6):418-9. doi: 10.1136/practneurol-2013-000715. Epub 2013 Oct 24.