Sahle, Selam Niguse
Asress, Dereje Teshome
Tullu, Kassu Desta
Weldemariam, Atsebeha Gebrezgeaxier
Tola, Habteyes Hailu
Awas, Yodit Alemayehu
Hagos, Gebremdihin Gebremichael
Worku, Muluwork Getahun
Misgina, Desta Kassa
Funding for this research was provided by:
Ethiopian Public Health Institute
Addis Ababa University