Kumar A, Joshi JL, Umathoor A, Chopra V, Kaur K, Mittal V. Prevalence of primary drug resistance to rifampicin and isoniazid in newly diagnosed sputum smear positive pulmonary Tuberculosis. Int J Res Med Sci [Internet]. 2019 Aug. 27 [cited 2025 Oct. 12];7(9):3532-5. Available from: https://www.msjonline.org/index.php/ijrms/article/view/7069