From the Department of Neurology (F.J.M.), Massachusetts General Hospital, Boston; Department of Neurology (I.H.), University Hospital of Würzburg, Germany; Department of Neurology (G.L.B.), University of Rochester Medical Center, NY; Department of Neurology (A.S.), Massachusetts General Hospital, Boston; Department of Neurology (E.S.), Medical University Innsbruck, Austria; Department of Paediatric Neurology (J.M.W.), University of Cape Town, South Africa; American Academy of Neurology (H.S.), Minneapolis, MN; and Department of Neurology (L.K.J.), Mayo Clinic, Rochester, MN. quality@aan.com.