Microscopic observation drug susceptibility assay (MODS) for early diagnosis of tuberculosis in children. by Ha, D, Lan, N, Wolbers, M, Duong, T, Quang, N, Thi Van Thinh, T, Thi Hong Ngoc, L, Thi Ngoc Anh, N, Van Quyet, T, Thi Bich Tuyen, N, Thi Ha, V, Day, J, Thi Thanh Hang, H, Kiet, V, Thi Nho, N, Hoa, D, Dung, N, Huu Lan, N, Farrar, J, Caws, M