Institution: | (1) Institute of Neuropathology, Universitätsklinikum Benjamin Franklin, Hindenburgdamm 30, D-12200 Berlin, Germany;(2) Institute of Pathology, Universitätsklinikum Benjamin Franklin, Free University Berlin, Germany;(3) Institute of Environmental Hygiene, Düsseldorf, Germany;(4) Present address: Institute of Pathology, University Hospital Eppendorf, Hamburg, Germany |