1 Movement Disorders Section, Department of Neurology, Hannover Medical School, Hannover, Germany
2 Department of Neurology, University of Bonn, Bonn, Germany
3 Merz Pharmaceuticals GmbH, Frankfurt am Main, Germany
4 Clinic and Policlinic for Neurology, Charité-Universitätsmedizin, Berlin, Germany
5 Department of Neurology and Stereotactic Neurosurgery, University of Magdeburg, Germany
Correspondence to
Professor Dirk Dressler, Head of Movement Disorders Section, Department of Neurology, Hannover Medical School, Hannover 30625, Germany; dressler.dirk@mh-hannover.de