About the Authors

Nídia S. Trovão

Affiliation Fogarty International Center, National Institutes of Health, Bethesda, Maryland, United States of America

Martha I. Nelson

nelsonma@mail.nih.gov

Affiliation Fogarty International Center, National Institutes of Health, Bethesda, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.