Erratum to: J Neural Transm (2016) 123:439–445 DOI 10.1007/s00702-016-1507-8

In the original article, the co-authorship of the members of “The PROMESA study group” was inadvertently not clearly indicated. The names of these members should have been clearly linked to the author line of the article, to ensure that the article can be found under each of their names in PubMed and other databases.

In order to rectify this situation, this erratum provides a corrected author line, found above, that includes the names of the members of “The PROMESA study group” and an expanded list of affiliations.

The names that have been added are found in the author line following “Gregor Wenning” and preceding “The PROMESA study group.” Here are these names, once again, as a separate list with affiliations:

  • D. Berg, MD (Center of Neurology, Department of Neurodegeneration and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany);

  • Joseph Claßen, MD (Department of Neurology, University of Leipzig, Leipzig, Germany);

  • Georg Ebersbach, MD (Movement Disorders Clinic, Beelitz-Heilstätten, Germany);

  • Karla Eggert, MD (Universitätsklinikum Giessen und Marburg, Klinik für Neurologie, Marburg, Germany);

  • Jan Kassubek, MD (Department of Neurology, University of Ulm, Ulm, Germany);

  • Axel Lipp, MD (Department of Neurology, Charité-University Medicine Berlin, Berlin, Germany);

  • Matthias Löhle, MD (Department of Neurology, Technische Universität Dresden, Dresden, Germany);

  • Brit Mollenhauer, MD (Paracelsus-Elena-Klinik, Kassel, Germany; University Medical Center, Georg-August-Universität Göttingen, Göttingen, Germany);

  • Alexander Münchau, MD (Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, Institute of Neurogenetics, University of Lübeck, Germany);

  • Martin Südmeyer, MD (Institute of Clinical Neuroscience and Medical Psychology, Heinrich-Heine-University, Medical Faculty, Düsseldorf, Germany);

  • C. Blankenstein, MD (Münchner Studienzentrum (MSZ), Klinikum rechts der Isar, Technische Universität München, Munich, Germany);

  • C. Eberhardt (Pharmacy, Charité-University Medicine Berlin, Berlin, Germany);

  • B. Ertl-Wagner, MD (Institute for Clinical Radiology, Ludwig-Maximilians-University Munich, Germany);

  • H. Heise, PhD (Clinical Study Center, Ludwig-Maximilians-Universität München, Munich, Germany);

  • I. Ricard, PhD (Institute of Medical Informatics, Biometry, and Epidemiology, University of Munich, Munich, Germany).