Affiliation: | 1.Trachoma Control Program, The Carter Center, Atlanta, Georgia;2.Trachoma Control Program, The Carter Center, Addis Ababa, Ethiopia;3.Department of Biostatistics and Bioinformatics, Emory University, Atlanta, Georgia;4.Amhara Public Health Institute, Bahir, Dar, Ethiopia;5.Amhara Regional Health Bureau, Bahir Dar, Ethiopia;6.Ministry of Health, Addis Ababa, Ethiopia |