Nash, Scott D; Stewart, Aisha E P; Zerihun, Mulat; Sata, Eshetu; Gessese, Demelash; Melak, Berhanu; Endeshaw, Tekola; Chanyalew, Melsew; Chernet, Ambahun; Bayissasse, Belay; Moncada, Jeanne; Lietman, Thomas M; Emerson, Paul M; King, Jonathan D; Tadesse, Zerihun; Callahan, E Kelly