1. Dr. Senckenberg Institute of Pathology Goethe University Frankfurt Frankfurt am Main Germany
2. Frankfurt Institute for Advanced Studies Frankfurt am Main Germany
3. Institute of General Pharmacology and Toxicology Goethe University Frankfurt Frankfurt am Main Germany
4. Institute of Pathology and Molecular Pathology Helios University Hospital Wuppertal Wuppertal Germany
5. Institute of Pathology University of Würzburg and Comprehensive Cancer Center (CCC) Mainfranken Würzburg Germany
6. Hematopathology Lübeck Lübeck Germany
7. Department of Clinical Pathology Robert‐Bosch‐Krankenhaus, and Dr. Margarete Fischer‐Bosch Institute of Clinical Pharmacology Stuttgart Germany
8. Institute of Pathology University Hospital Ulm Ulm Germany
9. Pathodiagnostik Berlin Berlin Germany
10. Institute of Pathology, Hematopathology Section and Lymph Node Registry University Hospital Schleswig‐Holstein Campus Kiel Kiel Germany
11. First Department of Internal Medicine Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University of Cologne Cologne Germany
12. German Hodgkin Study Group (GHSG) University Hospital Cologne Cologne Germany