Muhammad Zahid Mengal, Hamida Ali, Raheela Asmat, Muhammad Naeem, Ferhat Abbas, Abdul Samad, Mohammad Zahid Mustafa, Jannat Raza and Tauseef M. Asmat, 2020. Detection of Mutations in 81-bpRifampin Resistance Determining Region (RRDR) of rpoB gene in Mycobacterium tuberculosis using GeneXpert MTB/RIF in Clinical Specimens from Quetta, Pakistan. Pakistan J. Zool., 53: 01-07. DOI: https://dx.doi.org/10.17582/journal.pjz/20190522060512