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Van Deun, A; Zwahlen, M; Bola, V; Lebeke, R; Bahati, E; Lubamba, P; Rieder, H L (2007). Validation of candidate smear microscopy quality indicators, extracted from tuberculosis laboratory registers. International journal of tuberculosis and lung disease, 11(3), pp. 300-5. Paris: International Union Against Tuberculosis and Lung Disease IUATLD
