About the Authors

Michael G. Walsh

michael.walsh@downstate.edu

Affiliation Department of Epidemiology and Biostatistics, School of Public Health, State University of New York, Downstate, New York, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MW. Analyzed the data: MW. Wrote the paper: MW.