PT - JOURNAL ARTICLE AU - John Stewart TI - Sideways AID - 10.1136/jnnp.2007.120048 DP - 2007 Jun 01 TA - Practical Neurology PG - 142--144 VI - 7 IP - 3 4099 - http://pn.bmj.com/content/7/3/142.short 4100 - http://pn.bmj.com/content/7/3/142.full SO - Pract Neurol2007 Jun 01; 7