1. Department of Global Health and Health Policy, Addis Continental Institute of Public Health, Addis Ababa, Ethiopia
2. School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
3. School of Nursing and Midwifery, Haramaya University, Harar, Ethiopia
4. Department of Epidemiology and Biostatistics, Addis Continental Institute of Public Health, Addis Ababa, Ethiopia