1. Institute of Human GeneticsUniversity Hospital Schleswig‐Holstein, Campus Kiel/Christian‐Albrechts University Kiel Germany
2. Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and TechnologyUniversity of the Basque Country Leioa Spain
3. Department of Pathology, Hematopathology Unit, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), CIBERONCUniversity of Barcelona Barcelona Spain
4. NHL‐BFM Study Center and Department of Pediatric Hematology and OncologyUniversity Children's Hospital Münster Germany
5. Department of BiopathologyCentre Léon Bérard Lyon France
6. Department of Pathology, Hematopathology Section and Lymph Node RegistryUniversity Hospital Schleswig‐Holstein, Campus Kiel/Christian‐Albrechts University Kiel Germany
7. Institute of Human GeneticsUlm University & Ulm University Medical Center Ulm Germany
8. Department of Pediatric Hematology and OncologyMedical School Hannover Hannover Germany
9. Department of Pediatric Hematology and Oncology, Second Faculty of MedicineCharles University Prague and University Hospital Motol Motol Czech Republic
10. Department of Pediatric HematologyIHOP and Claude Bernard University Lyon France
11. Department of Pediatric Hematology and OncologyNHL‐BFM‐Study Center Justus Liebig University Germany