1. From the Department of Neurology (D.R., T. Skripuletz, E.V., K.-W.S.); Clinic for Anesthesiology and Intensive Care (T. Stüber), Hannover Medical School; Outpatient Clinic of Neurology (K.G.), Neurozentrum, Itzehoe; Departments of Neurosurgery (P.E.), Nuclear Medicine (J.A.M.), Diagnostic and Interventional Neuroradiology (M.P.W.), and Neuropathology (F.F.), Institute of Pathology, Hannover Medical School, Germany.