Uganda: saving a nation besieged by cassava mosaic virus disease epidemic - Bua, A.; Otim-Nape, G.W.; Sserubombwe, W; Thresh, J.M.; Baguma, Yona K.; Ssemakula, G.N.; Titus, A; Omongo, C.A. (Cassava Biotechnology Network (CBN), 2002)