About the Authors

Jennifer H. McKenzie

Affiliation Biomedical Engineering and Biotechnology Program, University of Massachusetts, Lowell, Massachusetts, United States of America

James J. McDevitt

Affiliation Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America

M. Patricia Fabian

Affiliation Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America

Grace M. Hwang

Affiliation The MITRE Corporation, McLean, Virginia, United States of America

Donald K. Milton

dmilton@umd.edu

Affiliation Maryland Institute for Applied Environmental Health, School of Public Health, University of Maryland, College Park, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JHM JJM MPF GMH DKM. Performed the experiments: JHM JJM. Analyzed the data: JHM DKM. Contributed reagents/materials/analysis tools: GMH DKM. Wrote the paper: JHM DKM.