About the Authors

Getahun Alemu
SOS Children's Villages International, Addis Ababa, Ethiopia

Fasil Tekola Ayele
Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, United States of America

Takele Daniel
Addis Ababa Health Bureau, Addis Ababa, Ethiopia

Christel Ahrens
International Institute of Child Health, London, United Kingdom

Gail Davey
Brighton and Sussex Medical School, Brighton, United Kingdom

Corresponding Author

ayeleft@mail.nih.gov

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GA CA GD TD. Analyzed the data: CA FT GA TD GD. Wrote the paper: CA GA FT. Developed the study instruments: CA GD GA TD. Data collection: CA GA. Revised the manuscript for substantial intellectual content: GA CA GD TD FT GD.