[1] Vivantes Hosp Spandau, Berlin, Germany
[2] Ctr Rehabil Vogellanden, Zwolle, Netherlands
[3] Neurol Zentrum Bewegungsstorungen & Diagnost, Berlin, Germany
[4] Pole St Helier, Rennes, France
[5] Univ Hosp Bern, Dept Neurol, Bern, Switzerland
[6] Univ Bern, Bern, Switzerland
[7] Univ Dusseldorf, Dusseldorf, Germany
[8] IPSEN PHARMA GmbH, Med Affairs, Ettlingen, Germany
[9] Ividata, Biostat, Levallois Perret, France
[10] Gailtal Klin, Hermagor, Austria