Wait and watch: A trachoma surveillance strategy from Amhara region, Ethiopia. oleh Eshetu Sata, Fikre Seife, Zebene Ayele, Sarah A Murray, Karana Wickens, Phong Le, Mulat Zerihun, Berhanu Melak, Ambahun Chernet, Kimberly A Jensen, Demelash Gessese, Taye Zeru, Adisu Abebe Dawed, Hiwot Debebe, Zerihun Tadesse, E Kelly Callahan, Diana L Martin, Scott D Nash