REVIEW A.H.V. Schapira Corresponding Author E-mail address: a.schapira@ucl.ac.uk Department of Clinical and Movement Neurosciences, University College London Queen Square Institute of Neurology, London, United Kingdom Correspondence: Professor Anthony H V Schapira, MD, DSc, FRCP, FMedSci, Department of Clinical and Movement Neurosciences, University College London Institute of Neurology, Rowland Hill St, London, NW3 2PF, UK Email: a.schapira@ucl.ac.uk Search for more papers by this author...