From the Departments of Neurology (M.C., A.D., M.F., R.A.), Pathology (T.R.), Neurosurgery (J.R.), Radiology (N.B.), Nuclear Medicine (X.S.), Neuropsychology (T.B., A.R.), and Psychiatry (L.P.), H. Clínic, Barcelona, Spain; and Department of Neurology (M.I.B.), Hospital Son Dureta, Palma de Mallorca, Spain. (At 2007-04-17)