About the Authors

Karen K. Smith-McCune

kmccune@cc.ucsf.edu

Affiliations Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, California, United States of America, Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, California, United States of America

Stephen Shiboski

Affiliation Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, United States of America

Mike Z. Chirenje

Affiliation Department of Obstetrics and Gynecology, University of Zimbabwe, Harare, Zimbabwe

Tsitsi Magure

Affiliation Department of Obstetrics and Gynecology, University of Zimbabwe, Harare, Zimbabwe

Jennifer Tuveson

Affiliation Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, California, United States of America

Yifei Ma

Affiliation Department of Pediatrics, University of California San Francisco, San Francisco, California, United States of America

Maria Da Costa

Affiliation Department of Medicine, University of California San Francisco, San Francisco, California, United States of America

Anna-Barbara Moscicki

Affiliations Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, California, United States of America, Department of Pediatrics, University of California San Francisco, San Francisco, California, United States of America

Joel M. Palefsky

Affiliations Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, California, United States of America, Department of Medicine, University of California San Francisco, San Francisco, California, United States of America

Rudo Makunike-Mutasa

Affiliation Department of Obstetrics and Gynecology, University of Zimbabwe, Harare, Zimbabwe

Tsungai Chipato

Affiliation Department of Obstetrics and Gynecology, University of Zimbabwe, Harare, Zimbabwe

Ariane van der Straten

Affiliations Department of Medicine, University of California San Francisco, San Francisco, California, United States of America, Women's Global Health Imperative, RTI International, San Francisco, California, United States of America

George F. Sawaya

Affiliations Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, California, United States of America, Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, California, United States of America, Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KKSM SS MZC ABM JMP TC AvdS GFS. Performed the experiments: MZC TM JT MMDC RMM TC. Analyzed the data: KKSM SS MZC TM JT YM MMDC ABM JMP RMM TC AvdS GFS. Contributed reagents/materials/analysis tools: KKSM SS MZC TM YM ABM JMP RMM TC AvdS GFS. Wrote the paper: KKSM SS AvdS GFS.