PT - JOURNAL ARTICLE AU - Charles Warlow TI - Editor's choice AID - 10.1136/jnnp.2009.203976 DP - 2010 Feb 01 TA - Practical Neurology PG - 1--1 VI - 10 IP - 1 4099 - http://pn.bmj.com/content/10/1/1.short 4100 - http://pn.bmj.com/content/10/1/1.full SO - Pract Neurol2010 Feb 01; 10