About the Authors

Colin F. Boyle

colin.boyle@ucsf.edu

Affiliation University of California San Francisco, San Francisco, CA, United States of America

Carol Levin

Affiliation University of Washington, Department of Global Health, Seattle, WA, United States of America

Arian Hatefi

Affiliation University of California San Francisco, San Francisco, CA, United States of America

Solange Madriz

Affiliation University of California San Francisco, San Francisco, CA, United States of America

Nicole Santos

Affiliation University of California San Francisco, San Francisco, CA, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CB CL. Performed the experiments: CB CL AH SM NS. Analyzed the data: CB CL AH SM NS. Wrote the paper: CB.