PT - JOURNAL ARTICLE AU - H P Mattle TI - Switzerland AID - 10.1136/jnnp.2008.156869 DP - 2008 Oct 01 TA - Practical Neurology PG - 330--332 VI - 8 IP - 5 4099 - http://pn.bmj.com/content/8/5/330.short 4100 - http://pn.bmj.com/content/8/5/330.full SO - Pract Neurol2008 Oct 01; 8