PT - JOURNAL ARTICLE AU - Charles Warlow TI - Editor’s choice AID - 10.1136/jnnp.2009.900904 DP - 2009 Apr 01 TA - Practical Neurology PG - 67--67 VI - 9 IP - 2 4099 - http://pn.bmj.com/content/9/2/67.1.short 4100 - http://pn.bmj.com/content/9/2/67.1.full SO - Pract Neurol2009 Apr 01; 9