Musharaf, M. S., Zaman, S. A. S., Usman, U., Javaid, A., & Zahid Chaudery, F. H. (2021). Frequency Of Rifampicin Resistance Among Sputum Smear Negative Pulmonary Tuberculosis Cases By Real Time PCR. Pakistan Journal of Chest Medicine, 27(1), 20–24. Retrieved from https://www.pjcm.net/index.php/pjcm/article/view/691