Mengistu, Kassahun Prevalence and factors associated with trachoma among children aged 1-9 years in Zala district, Gamo Gofa Zone, Southern Ethiopia. [electronic resource] - Clinical ophthalmology (Auckland, N.Z.) 2016 - 1663-70 p. digital Publication Type: Journal Article ISSN: 1177-5467 Standard No.: 10.2147/OPTH.S107619 doi