Affiliation: | 1. Institute of Pathology and Neuropathology, University Hospital of Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147 Essen, NW, Germany;2. West German Cancer Centre Essen, University Hospital of Essen, University of Duisburg-Essen, 45147 Essen, NW, Germany;3. Institute of Pathology, University Hospital of Jena, University of Jena, 07743 Jena, TH, Germany |