GPi-DBS may induce a hypokinetic gait disorder with freezing of gait in patients with dystonia. - Schrader, Christoph; Capelle, H. -H.; Kinfe, Thomas M.; Blahak, C.; Baezner, H.; Luetjens, G.; Dressler, D.; Krauss, J. K. (Neurology, 2011)