Author information:
(1)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
(2)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Whitehead 
Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of 
Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
(3)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Graduate 
Program in Immunology, Division of Medical Sciences, Harvard Medical School, 
Boston, MA 02115, USA.
(4)Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.
(5)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Stem 
Cell Institute and Department of Stem Cell and Regenerative Biology, Harvard 
University, Cambridge, MA 02138, USA.
(6)Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; 
Department of Radiation Oncology, Dana-Farber Cancer Institute, 450 Brookline 
Avenue, Boston, MA 02215, USA.
(7)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for 
Immunology and Inflammatory Diseases, Massachusetts General Hospital, 
Charlestown, MA 02129, USA.
(8)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; McGovern 
Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, 
MA 02139, USA; Department of Brain and Cognitive Sciences and Biological 
Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
(9)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of 
Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; 
Department of Systems Biology, Harvard Medical School, Boston, MA 02114, USA. 
Electronic address: lander@broadinstitute.org.
(10)Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of 
Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Howard 
Hughes Medical Institute, 4000 Jones Bridge Road, Chevy Chase, MD 20815, USA. 
Electronic address: aregev@broad.mit.edu.