1 From the Department of Neurology (R.S.A.) and Center for Neurodegenerative Disease Research and Institute on Aging (R.S.A.), Perelman School of Medicine, University of Pennsylvania, Philadelphia; and Departments of Neuromodulation and Neurosurgery (T.M.) and Neurology (T.M.), Osaka University, Japan. rakhtar@pennmedicine.upenn.edu.
2 From the Department of Neurology (R.S.A.) and Center for Neurodegenerative Disease Research and Institute on Aging (R.S.A.), Perelman School of Medicine, University of Pennsylvania, Philadelphia; and Departments of Neuromodulation and Neurosurgery (T.M.) and Neurology (T.M.), Osaka University, Japan.