Author information:
(1)Department of Genetics, Harvard Medical School, Boston, MA 02215, USA; 
Department of Cancer Biology, Dana-Farber Cancer Institute, 450 Brookline 
Avenue, Boston, MA 02215, USA. Electronic address: 
elodiey_hatchi@dfci.harvard.edu.
(2)Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, 
UK.
(3)Department of Biostatistics and Computational Biology, Dana-Farber Cancer 
Institute, 450 Brookline Avenue, Boston, MA 02215, USA; Department of 
Biostatistics, Harvard School of Public Health, Boston, MA 02115, USA.
(4)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Computer 
Science and Artificial Intelligence Laboratory (CSAIL), MIT, Cambridge, MA 
02139, USA.
(5)Department of Genetics, Harvard Medical School, Boston, MA 02215, USA; 
Department of Cancer Biology, Dana-Farber Cancer Institute, 450 Brookline 
Avenue, Boston, MA 02215, USA.
(6)Department of Genetics, Harvard Medical School, Boston, MA 02215, USA; 
Department of Cancer Biology, Dana-Farber Cancer Institute, 450 Brookline 
Avenue, Boston, MA 02215, USA. Electronic address: 
david_livingston@dfci.harvard.edu.