PT - JOURNAL ARTICLE AU - Charles Warlow TI - EDITOR’S CHOICE AID - 10.1136/jnnp.2009.186544 DP - 2009 Aug 01 TA - Practical Neurology PG - 191--191 VI - 9 IP - 4 4099 - http://pn.bmj.com/content/9/4/191.short 4100 - http://pn.bmj.com/content/9/4/191.full SO - Pract Neurol2009 Aug 01; 9