1. From the Stroke Research Group, Department of Brain Repair and Rehabilitation, UCL Institute of Neurology and The National Hospital for Neurology and Neurosurgery, Queen Square, London, UK (A.C., D.J.W.); Department of Stroke Medicine, Imperial College Healthcare, NHS Trust, London, UK (P.K.); and Education Unit, UCL Institute of Neurology, Queen Square, London, UK (Z.F.).