1. III. Medical Department, Technische Universität München, Munich, Germany;
2. Department of Cancer Biology, The Scripps Research Institute, Scripps Florida, Jupiter, FL;
3. Institute of Pathology and Clinical Cancer Center Mainfranken, Universität Würzburg, Würzburg, Germany;
4. Department of Nuclear Medicine, Technische Universität München, Munich, Germany;
5. Department of Surgery, Sahlgrenska Cancer Center, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden;
6. Department of Cell/Tissue Biology, University of California, San Francisco, San Francisco, CA; and
7. German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany