1. Division of Translational Pediatric Sarcoma Research, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), Heidelberg, Germany. 1
2. Hopp Children’s Cancer Center Heidelberg (KiTZ), Heidelberg, Germany. 2
3. National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and Heidelberg University Hospital, Heidelberg, Germany. 3
4. Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany. 4