Stem Cell Transplantation Program, Stem Cell Program, Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA, USA.

David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.

RA Capital, Boston, MA, USA.

The Barbara K. Ostrom (1978) Bioinformatics and Computing Facility, Swanson Biotechnology Center, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.

Department of Pediatric Oncology, Dana-Farber Cancer Institute, and Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA, USA.

Department of Pediatric Oncology, Dana-Farber Cancer Institute, and Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA, USA.

Department of Pediatric Oncology, Dana-Farber Cancer Institute, and Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA, USA.

Harvard Medical School, Boston, MA, USA.

David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.

Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA.

Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, MA, USA.

David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA. hemann@mit.edu.

Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA. hemann@mit.edu.

Stem Cell Transplantation Program, Stem Cell Program, Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA, USA. grant_rowe@dfci.harvard.edu.

Department of Pediatric Oncology, Dana-Farber Cancer Institute, and Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA, USA. grant_rowe@dfci.harvard.edu.

Harvard Medical School, Boston, MA, USA. grant_rowe@dfci.harvard.edu.