TY - JOUR T1 - Editorial JF - Journal of Neurology, Neurosurgery & Psychiatry JO - J Neurol Neurosurg Psychiatry SP - 389 LP - 391 DO - 10.1136/jnnp.42.5.389 VL - 42 IS - 5 A2 - Simpson, J. A. Y1 - 1979/05/01 UR - http://jnnp.bmj.com/content/42/5/389.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -