1. Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Fenot Project, Addis Ababa, Ethiopia
2. Department of Global Health and Population, Harvard T.H. Chan School of Public Health, 665 Huntington Ave., Building 1, Boston, MA 02115, USA
3. School of Public Health, Fenot Project, Addis Ababa University, Addis Ababa, Ethiopia
4. Heller School for Social Policy and Management, Brandeis University 415 South St, Waltham, MA, USA
5. School of Population and Public Health, University of British Columbia, 2206 E Mall, Vancouver, Canada
6. Maternal and Child Health Directorate, Ministry of Health, Federal Democratic Republic of Ethiopia, Addis Ababa, Ethiopia