作者单位:Hopp Children's Cancer Center Heidelberg (KiTZ)[1]Department of Neuropathology Heidelberg University Hospital[2]Department of Neuropathology Charité – Universit?tsmedizin Berlin Campus Charité Mitte And German[3]Department of Human Genetics Institute of Human Genetics Heidelberg University Hospital[4]Department of Pediatric Oncology and Hematology Charité - Universit?tsmedizin Berlin Campus Virchow[5]Department of Pediatric Oncology and Hematology University Hospital Cologne[6]Children's Cancer Center Helios Hospital Krefeld[7]