About the Authors

Jamie Perin

jperin@jhu.edu

Affiliation Department of International Health, Johns Hopkins University, Baltimore, MD, United States of America

Ji Soo Kim

Affiliation Department of Biostatistics, Johns Hopkins University, Baltimore, MD, United States of America

Elizabeth Hazel

Affiliation Department of International Health, Johns Hopkins University, Baltimore, MD, United States of America

Lois Park

Affiliation Department of International Health, Johns Hopkins University, Baltimore, MD, United States of America

Rebecca Heidkamp

Affiliation Department of International Health, Johns Hopkins University, Baltimore, MD, United States of America

Scott Zeger

Affiliations Department of International Health, Johns Hopkins University, Baltimore, MD, United States of America, Department of Biostatistics, Johns Hopkins University, Baltimore, MD, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: SZ. Formal analysis: JK JP SZ. Funding acquisition: RH. Investigation: JK EH JP SZ. Methodology: JK JP SZ. Project administration: RH. Resources: JK EH LP JP SZ. Software: JK JP SZ. Supervision: SZ RH. Validation: JK JP SZ. Visualization: SZ LP JP. Writing – original draft: JP SZ. Writing – review & editing: JP JK EH LP RH SZ.