Affiliation: | (1) Department of Neurosurgery, Hamburg University Hospital, Eppendorf, Hamburg, West Germany;(2) Department of Neuropathology, Hamburg University Hospital, Eppendorf, Hamburg, West Germany;(3) Neurochirurgische Abteilung, Universitätskrankenhauses Hamburg-Eppendorf, Martinistr. 52, 2000 Hamburg 20, West Germany |