1. Medical Department University Medical Center, Johannes Gutenberg University Mainz Mainz Germany
2. Medical Department University Hospital Carl Gustav Carus Dresden Germany
3. Department of Medical Oncology & Comprehensive Cancer Center University Hospital Grosshadern München Germany
4. Department of Medical Oncology, West German Cancer Center University Hospital Essen Essen Germany
5. Hematological and Oncological Practice Eppendorf (HOPE) Private Clinics for Oncology Hamburg Germany
6. Private Clinics for Hematology and Oncology Müllheim a.d.R. Germany
7. Oncologianova GmbH Recklinghausen Recklinghausen Germany
8. Department of Medicine I Nordoberpfalz Clinics AG Weiden i.d.O. Germany
9. Department of General and Visceral Surgery Frankfurt University Hospital and Clinics Frankfurt Germany
10. Department of Hematology and Oncology Robert Bosch Hospital Stuttgart Germany
11. Department of Surgery, Campus Charité Mitte and Campus Virchow Klinikum Charité University Medicine Berlin Germany
12. Department of Oncology, Gastroenterology, Hepatology, Pulmonology, and Infectious Diseases University Cancer Center Leipzig (UCCL), University Hospital Leipzig Leipzig Germany
13. City Hospital Karlsruhe Karlsruhe Germany
14. Department of Hematology and Oncology Hospital Altenburger Land GmbH Altenburg Germany
15. Private Clinics for Hematology and Oncology Offenburg Offenburg Germany
16. Department of Internal Medicine 5, Hematology/Oncology Municipal Hospital Darmstadt Darmstadt Germany
17. Department of Surgery University Hospital Essen Essen Germany
18. Medical Department iOMEDICO Freiburg Germany
19. Department of Internal Medicine 2, Gastroenterology Municipal Hospital Darmstadt Darmstadt Germany