About the Authors
- Samson Gebremedhin
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* E-mail: samsongmgs@yahoo.com
Affiliation College of Agriculture, Hawassa University, Hawassa, Ethiopia
- Fikre Enquselassie
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Affiliation School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
- Melaku Umeta
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Affiliation School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: SG FE MU. Analyzed the data: SG FE MU. Wrote the paper: SG FE MU.