Thomas Klockgether, MD Department of Neurology, University Hospital of Bonn, Bonn, Germany	Paola Giunti, MD PhD Institute of Neurology and National Hospital for Neurology and Neurosurgery, UCL/UCLH, London, UK	Alexandra Dürr, MD Ph DAP-HP, Pitié-Salpêtrière Hospital, Department of Genetics and Cytogenetics, Paris,  France	Caterina Mariotti, MD Department of Biochemistry and Genetics, Istituto Nazionale Neurologico C. Besta, Milan, Italy
Massimo Pandolfo, MD Department of Neurology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium	Olaf Riess, PhD Department of Human Genetics, University of Tübingen, Tübingen, Germany	Bart van de Warrenburg, MD Department of Neurology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands