1. School of Public Health, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
2. School of Health Science, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
3. Department of Epidemiology, Hosanna Health Science College, Balie, Ethiopia
4. Department of Epidemiology, College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
5. School of Public Health, College of Medicine and Health Sciences, Maddawalabu University, Balie, Ethiopia