1. Department of Hematology, Oncology, Immunology, Rheumatology and Pulmonology; University Hospital Tübingen; Tübingen Germany
2. Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation; Hannover Medical School; Hannover Germany
3. Department of Pediatric Hematology and Oncology; University Children's Hospital; Tübingen Germany