About the Authors
Department of Computer Science, Stanford University, Stanford, California, United States of America
Stanford Genome Technology Center, Stanford, California, United States of America
School of Informatics, Indiana University, Bloomington, Indiana, United States of America
Department of Computer Science and Engineering, University of California, San Diego, La Jolla, California, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: SB MR AS. Performed the experiments: AS. Analyzed the data: AS. Contributed reagents/materials/analysis tools: PP HT. Wrote the paper: PP SB AS.