Targeting Trachoma Control through Risk Mapping: The Example of Southern Sudan. - Clements, Archie C. A.; Kur, Lucia W.; Gatpan, Gideon; Ngondi, Jeremiah M.; Emerson, Paul M.; Lado, Mounir; Sabasio, Anthony; Kolaczinski, Jan H. (PLoS Neglected Tropical Diseases, 2010)