1. Addis Ababa University, Addis Ababa, Ethiopia
2. St Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia
3. Jimma University, Jimma, Ethiopia
4. University of Gondar, Gondar, Ethiopia
5. Bill and Melinda Gates Foundation, Seattle, WA, USA
6. RTI International, Durham, NC, USA
7. Columbia University, New York, NY, USA