1 Department of Neurology (A.S., T.O., L.L., S.S.) and Center for Neuroepidemiology and Clinical Neurological Research (S.S.), Yale University School of Medicine, Yale University, New Haven, CT; and Department of Neurology (K.R.), University of North Carolina School of Medicine, Chapel Hill. andrew.silverman@yale.edu.
2 Department of Neurology (A.S., T.O., L.L., S.S.) and Center for Neuroepidemiology and Clinical Neurological Research (S.S.), Yale University School of Medicine, Yale University, New Haven, CT; and Department of Neurology (K.R.), University of North Carolina School of Medicine, Chapel Hill.