1 From the Queen Square MS Centre (A.T.T.), Department of Neuroinflammation, UCL Institute of Neurology, Queen Square, London, UK; Department of Neurology (K.K.), Boston Children's Hospital, Harvard Medical School, MA; and Department of Neurology and Pharmacy (K.V.N.), University of Colorado Anschutz Medical Campus, Aurora. a.toosy@ucl.ac.uk.
2 From the Queen Square MS Centre (A.T.T.), Department of Neuroinflammation, UCL Institute of Neurology, Queen Square, London, UK; Department of Neurology (K.K.), Boston Children's Hospital, Harvard Medical School, MA; and Department of Neurology and Pharmacy (K.V.N.), University of Colorado Anschutz Medical Campus, Aurora.