About the Authors

Frederick A. Matsen IV

matsen@fhcrc.org

Affiliation Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America

Steven N. Evans

Affiliation Department of Statistics, University of California, Berkeley, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FAM SNE. Analyzed the data: FAM SNE. Wrote the paper: FAM SNE.