Affiliation: | 1. Department of Pediatrics, University Medical Center Schleswig‐Holstein, Campus Kiel, Germany;2. Department of Pathology, Lymph Node Registry Kiel, Institute of Hematopathology University Hospital Schleswig‐Holstein, Campus Kiel, Germany;3. Department of Pathology, Kiel Pediatric Tumor Registry, Institute of Pediatric Pathology, University Hospital Schleswig‐Holstein, Campus Kiel, Germany;4. Department of Pediatric Oncology/Hematology, Charit, é, University Medicine, Berlin, Germany;5. Division of Pediatric Hematology and Oncology, Department of Pediatrics, Hannover Medical School, Hannover, Germany;6. Department of Pediatrics, Klinikum Lippe Detmold, Detmold, Germany |