PT - JOURNAL ARTICLE ED - , TI - Compston and Swingler reply AID - 10.1136/jnnp.50.4.506 DP - 1987 Apr 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 506--506 VI - 50 IP - 4 4099 - http://jnnp.bmj.com/content/50/4/506.1.short 4100 - http://jnnp.bmj.com/content/50/4/506.1.full SO - J Neurol Neurosurg Psychiatry1987 Apr 01; 50