About the Authors

Ian H. Spicknall, James S. Koopman, Sheng Li, Joseph N. S. Eisenberg
Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, United States of America

Mark Nicas
Department of Environmental Health Sciences, University of California, Berkeley, Berkeley, California, United States of America

Josep M. Pujol
Telefonica, Catalonia, Spain

Corresponding Author

jnse@umich.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: IHS JSK MN JMP SL JNSE. Performed the experiments: IHS JMP JNSE. Analyzed the data: IHS JSK JNSE. Wrote the paper: IHS JSK JMP SL JNSE.