About the Authors

Atitegeb Ayehu

Affiliation Students Clinic, Debre Markos University, Debre Markos, Ethiopia

Teketo Kassaw

kteketo@yahoo.com

Affiliation Department of Public Health, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia

Getachew Hailu

Affiliation Department of Public Health, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AA TK GH. Performed the experiments: AA TK GH. Analyzed the data: AA TK GH. Contributed reagents/materials/analysis tools: AA TK GH. Wrote the paper: TK.