1. Department of Clinical Medicine Faculty of Health Aarhus University Aarhus Denmark
2. Division of Blood Disorders Rutgers Cancer Institute of New Jersey New Brunswick NJ USA
3. Department of Haemato‐oncology Barts Health NHS Trust LondonUK
4. Centre for Haemato‐oncology Barts Cancer Institute London UK
5. German Hodgkin Study Group Department I of Internal Medicine Center for Integrated Oncology University of CologneAachen Bonn Cologne Duesseldorf Köln Germany
6. Department of Haematology Christian Medical College Vellore India
7. Division of Hematology Department of Medicine Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand
8. Haematology Department Concord Repatriation General Hospital University of Sydney Sydney Australia