About the Authors

Barbara A. Jones

‡ BAJ and JHK are joint senior authors on this work.

Affiliation Almaden Research Center, IBM, San Jose, California, United States of America

Justin Lessler

Affiliation Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Simone Bianco

Affiliation Almaden Research Center, IBM, San Jose, California, United States of America

James H. Kaufman

jhkauf@us.ibm.com

‡ BAJ and JHK are joint senior authors on this work.

Affiliation Almaden Research Center, IBM, San Jose, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BAJ JHK. Performed the experiments: BAJ JHK. Analyzed the data: BAJ JL SB JHK. Contributed reagents/materials/analysis tools: BAJ JHK. Wrote the paper: BAJ JL SB JHK.