About the Authors

Rachel Jewkes

rjewkes@mrc.ac.za

Affiliations Gender & Health Research Unit, Medical Research Council, Pretoria, South Africa, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa

Loveday Penn-Kekana

Affiliations School of Public Health, University of the Witwatersrand, Johannesburg, South Africa, Maternal Health Group, Department of Infectious Diseases and Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom

Competing Interests

RJ is a member of the PLOS Medicine editorial board.

Author Contributions

Wrote the paper: RJ LPK. Agree with manuscript results and conclusions: RJ LPK. All authors have read, and confirm that they meet, ICMJE requirements for authorship.