1. 1German Hodgkin Study Group (GHSG) and Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), University of Cologne, Cologne, Germany
2. 2Division of Medical Oncology, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
3. 3Salzburg Cancer Research Institute (SCRI) Center for Clinical Cancer and Immunology Trials (CCCIT), Salzburg, Austria and Cancer Cluster Salzburg (CCS), Salzburg, Austria
4. 4AGMT, Salzburg, Austria
5. 5Department of Clinical Haematology, Westmead Hospital, Randwick, Australia
6. 6Medizinische Klinik II, Universitätsklinikum Tübingen, Tübingen, Germany
7. 7Department of Hematology, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
8. 83rd Medical Department for Hematology and Oncology, Hanusch Hospital, Vienna, Austria
9. 9Department of Oncology and Hematology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
10. 10Department of Hematology, Oncology and Bone Marrow Transplantation, Klinikum Chemnitz, Chemnitz, Germany
11. 11Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
12. 12Medicine V, University of Heidelberg, Heidelberg, Germany
13. 13Department of Hematology/Oncology, University Hospital of Munich, LMU Munich, Munich, Germany
14. 14Hematology, Oncology, and Tumor Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
15. 15Department of Hematology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, the Netherlands, Amsterdam, Netherlands
16. 16Department of Oncology, Oslo University Hospital, Oslo, Norway
17. 17Department of Internal Medicine III, University Hospital Ulm, Ulm, Germany
18. 18Klinikum Bremen Mitte, Bremen, Germany
19. 19Department of Hematology and Oncology, Robert-Bosch-Hospital, Stuttgart, Germany
20. 20Royal Adelaide Hospital, Adelaide, Australia
21. 21Department of Hematology, Aarhus University Hospital, Aarhus, Denmark, Aarhus, Denmark
22. 22Department of Immunology, Genetics, and Pathology, Clinical and Experimental Oncology, Uppsala University, Uppsala Akademiska Hospital, Uppsala, Sweden
23. 23German Hodgkin Study Group, University Hospital Cologne, Köln, DEU
24. 24German Hodgkin Study Group (GHSG), University Hospital Cologne, Cologne, Germany
25. 25University of Cologne, German Hodgkin Study Group (GHSG) and Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Cologne, Germany
26. 26German Hodgkin Study Group, University Hospital Cologne, Cologne, Germany
27. 27Institute of Pathology, University of Wuerzburg, Wuerzburg, Germany
28. 28Department of Pathology, Hematopathology Section and Lymph Node Registry, Universitätsklinikum Schleswig-Holstein, Kiel, Germany
29. 29Department of Radiotherapy, University Hospital of Muenster, Muenster, Germany
30. 30Department of Radiooncology and Cyberknife Center, Faculty of Medicine and University of Cologne, Cologne, Germany
31. 31Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, German CLL Study Group, University of Cologne, Cologne, Germany
32. 32Faculty of Medicine and University Hospital Cologne, University Hospital of Cologne, Department of Nuclear Medicine, Cologne, Germany
33. 33Department of Nuclear Medicine. Faculty of Medicine and University of Cologne, Cologne, Germany
34. 34German Hodgkin Study Group (GHSG), University of Cologne, Cologne, Germany
35. 35Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, Cologne, Germany
36. 36University of Cologne, German Hodgkin Study Group (GHSG), Cologne, Germany