Pokharel A, Bhandari C, Sharma B, Bhandari R, Paudel Y. Diagnostic Value of Bronchoalveolar Lavage in Sputum-Smear Negative Pulmonary Tuberculosis. J. Nat. Heart Lung Soc. Nep. 2023;2(2):77-80. doi:10.3126/jnhls.v2i2.60220