1. From the Department of Ataxia Unit of the Federal University of São Paulo (UNIFESP) (I.R.R., T.Y.T.S., O.G.B., J.L.P.); Neurology Department (F.K.), Hospital das Clínicas da Universidade de São Paulo and Mendelics; Department of Neurology and Neurosurgery (M.M.R., M.M.A., R.S.P.), Universidade Federal de São Paulo (UNIFESP); and Department of Neurology (M.C.F.), Universidade de Campinas (UNICAMP), Brazil.