PT - JOURNAL ARTICLE AU - GD Perkin TI - BOOK REVIEWS AID - 10.1136/jnnp.54.5.477-a DP - 1991 May 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 477--477 VI - 54 IP - 5 4099 - http://jnnp.bmj.com/content/54/5/477.2.short 4100 - http://jnnp.bmj.com/content/54/5/477.2.full SO - J Neurol Neurosurg Psychiatry1991 May 01; 54