PT - JOURNAL ARTICLE ED - , TI - BOOK REVIEWS AID - 10.1136/jnnp.20.1.76 DP - 1957 Feb 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 76--78 VI - 20 IP - 1 4099 - http://jnnp.bmj.com/content/20/1/76.short 4100 - http://jnnp.bmj.com/content/20/1/76.full SO - J Neurol Neurosurg Psychiatry1957 Feb 01; 20