About the Authors

Paul E. Sax

Affiliation Brigham and Women's Hospital, Boston, Massachusetts, United States of America

Juliana L. Meyers

jmeyers@rti.org

Affiliation RTI Health Solutions, Research Triangle Park, North Carolina, United States of America

Michael Mugavero

Affiliation University of Alabama, Birmingham, Alabama, United States of America

Keith L. Davis

Affiliation RTI Health Solutions, Research Triangle Park, North Carolina, United States of America

Competing Interests

This study was funded by Gilead Sciences.

Author Contributions

Conceived and designed the experiments: PES JLM MM KLD. Performed the experiments: JLM KLD. Analyzed the data: PES JLM MM KLD. Contributed reagents/materials/analysis tools: JLM KLD. Wrote the paper: PES JLM MM KLD.