1. Sobell Department of Motor Neuroscience; University College London (UCL) Institute of Neurology; Queen Square London United Kingdom
2. Reta Lila Weston Laboratories and Departments of Molecular Neuroscience; UCL Institute of Neurology; Queen Square London United Kingdom
3. Department of Neurology and Laboratory of Neuroscience; “Dino Ferrari” Centre, Università degli Studi di Milano-IRCCS Istituto Auxologico Italiano; Milan Italy
4. Department of Neuropsychology; National Hospital for Neurology and Neurosurgery; Queen Square London United Kingdom