About the Authors

Bradley H. Wagenaar

wagenaarb@gmail.com

Affiliation Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America

Patrick S. Sullivan

Affiliation Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America

Rob Stephenson

Affiliation Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PSS RS BHW. Performed the experiments: PSS RS BHW. Analyzed the data: BHW. Contributed reagents/materials/analysis tools: PSS RS BHW. Wrote the paper: BHW.