Diagnostic Yield of Bronchoalveolar lavage Xpert MTB/RIF Assay (Gene Xpert ® in Sputum Smear Negative Pulmonary Tuberculosis Patients – A One Year Cross Sectional Study . SAARC J. Tuber. Lung Dis. HIV/AIDS [Internet]. 2019 Dec. 31 [cited 2026 Jul. 7];17(2):1-7. Available from: https://nepjol.info/index.php/SAARCTB/article/view/49108