PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/jnnp.2008.146548 DP - 2010 Dec 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 1414--1414 VI - 81 IP - 12 4099 - http://jnnp.bmj.com/content/81/12/1414.6.short 4100 - http://jnnp.bmj.com/content/81/12/1414.6.full SO - J Neurol Neurosurg Psychiatry2010 Dec 01; 81