About the Authors

Fatimetu Mohammed

Contributed equally to this work with: Fatimetu Mohammed, Nega Assefa

Affiliation College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia

Nega Assefa

Contributed equally to this work with: Fatimetu Mohammed, Nega Assefa

negaassefa@yahoo.com

Affiliation College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FM NA. Performed the experiments: FM NA. Analyzed the data: FM NA. Contributed reagents/materials/analysis tools: FM NA. Wrote the paper: FM NA.