PT - JOURNAL ARTICLE ED - , TI - Neurology AID - 10.1136/jnnp.s1-2.6.169 DP - 1921 Aug 01 TA - The Journal of Neurology and Psychopathology PG - 169--175 VI - s1-2 IP - 6 4099 - http://jnnp.bmj.com/content/s1-2/6/169.short 4100 - http://jnnp.bmj.com/content/s1-2/6/169.full SO - J Neurol Neurosurg Psychiatry1921 Aug 01; s1-2