About the Authors

Laura Forsberg White

To whom correspondence should be addressed. E-mail: lfwhite@bu.edu

Affiliation Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts, United States of America

Marcello Pagano

Affiliation Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LW MP. Performed the experiments: LW. Analyzed the data: LW. Wrote the paper: LW.