A. Javaid, M. A. Khan, M. Z. Afridi, A. R. Khan, and A. Ghafoor, “Prevalence and pattern of Multidrug resistant tuberculosis among retreatment (Category II) patients of pulmonary tuberculosis in Khyber Pakhtunkhwa, Pakistan”, Pak J Chest Med, vol. 26, no. 3, pp. 121–127, Sep. 2020.