1. Department of Global Public Health and Primary Care, Bergen Centre for Ethics and Priority Setting, University of Bergen, P.O.Box. 7804, 5020, Bergen, Norway
2. School of Public Health, Addis Ababa University, P.O.Box: 9086/1000, Addis Ababa, Ethiopia
3. Ethiopian Health Insurance Agency, P.O.Box: 21254/1000, Addis Ababa, Ethiopia
4. Harvard TH Chan School of Public Health, Harvard University, 665 Huntington Avenue, Boston, MA 02115, USA