>Åman P. (Sahlgrenska Cancer Center, University of Gothenburg, Sweden)

>Bäumer S., Berdel W.E., Mikesch J.-H., Schliemann C., Schmidt L.-H. (Medical Clinic A (Haematology, Haemostasis, Oncology and Pneumology), University Hospital Münster, Germany)

>Baumhoer D. (Bone Tumor Reference Center, Basel, Switzerland)

>Heilmann-Heimbach S., Hoffmann P., Becker J. (Department of Genomics, Life & Brain Center and Institute of Human Genetics, University Bonn, Bonn, Germany)

>Büttner R. (Department of Pathology, University Hospital Cologne, Cologne, Germany)

>Dirksen U., Rössig C. (University Hospital Essen, Pediatrics III, Hematology/ Oncology, International Ewing Sarcoma Study Group, West German Cancer Centre, Germany)

>Dugas M. (Department of Medical Informatics, University Münster, Münster, Germany)

>Fröhling S., Scholl C. (Department of Translational Oncology, National Center for Tumor Diseases (NCT) and German Cancer Research Center (DKFZ), Heidelberg, Germany)

>Hardes J., Streitbürger A., Guder W. (Department for Orthopaedics and Emergency Surgery, University Hospital Essen, Essen, Germany)

>Hafner S., Simmet T. (Institute of Pharmacology & Clinical Pharmacology, University of Ulm, Germany)

>Kirfel J. (Pathology of the University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany)

>Larsson O. (Departments of Oncology & Pathology, Karolinska Institute, Stockholm, Sweden)

>Mechtersheimer G., Renner M., Schimacher P. (Department of Pathology, University Hospital Heidelberg, Heidelberg, Germany)

>Waha A. (Department of Neuropathology, University Hospital Bonn, Bonn, Germany)