About the Authors

David Wilson

dwilson@worldbank.org

Affiliation World Bank, Global HIV/AIDS Program, Washington, D.C., United States of America

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Analyzed the data: DW. Wrote the paper: DW. Agree with manuscript results and conclusions: DW. ICMJE criteria for authorship read and met: DW.