1. When a clear crystal makes a case crystal clear. Issue 6 (17th November 2009) Authors: Benz, Rudolf; Züger, Max; Pung, Tamara; Gallus, Evelyn; Weisshaupt, Christian; Krause, Martin Journal: Practical neurology Issue: Volume 9:Issue 6(2009) Page Start: 345 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗