1. Yield of serial sputum specimen examinations in the diagnosis of pulmonary tuberculosis: a systematic review;Mase;Int J Tuberc Lung Dis,2007
2. Reduction of number of smears for the diagnosis of pulmonary TB,2008
3. Efficiency of a third serial sputum smear examination in the diagnosis of tuberculosis in Moldova and Uganda;Katamba;Int J Tuberc Lung Dis,2007
4. Investing time in microscopy: an opportunity to optimise smear-based case detection of tuberculosis;Cambanis;Int J Tuberc Lung Dis,2007
5. An incremental cost-effectiveness analysis of the first, second and third sputum examination in the diagnosis of pulmonary tuberculosis;Walker;Int J Tuberc Lung Dis,2000