About the Authors
Department of Human Genetics, The University of Chicago, Chicago, Illinois, United States of America
Department of Statistics, The University of Chicago, Chicago, Illinois, United States of America
Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom
Howard Hughes Medical Institute, Chevy Chase, Maryland, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: ETD. Analyzed the data: JBV SK SYK YG MS JKP. Contributed reagents/materials/analysis tools: JBV YG MS JKP. Wrote the paper: JBV YG MS JKP.