Madegedara D, Kulathunga K, Nakandala S. Retrospective Analysis of Use of Empiric Anit Tuberculosis Treatment in Smear Negative Pulmonary Tuberculosis Patients in Central Sri Lanka. SAARC J. Tuber. Lung Dis. HIV/AIDS [Internet]. 2011 Mar. 14 [cited 2025 Jan. 17];7(2):15-8. Available from: https://nepjol.info/index.php/SAARCTB/article/view/4400