1. Institut für Pharmakologie und Klinische Pharmakologie, Universitätsklinikum der Heinrich-Heine-Universität, Düsseldorf, Germany
2. Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
3. Institute of Cell Biology (Cancer Research), University Hospital, University of Duisburg-Essen, Essen, Germany
4. Institute for Molecular Biology II, Centre for Medical Biotechnology (ZMB), University of Duisburg-Essen, Essen, Germany
5. Institute of Physiology, Faculty of Medicine, University Duisburg-Essen, Essen, Germany
6. Department of Gynecology, University Hospital Hamburg-Eppendorf, Hamburg, Germany