1. Li L, Zhang Z, Luo F, Xu J, Cheng P, Wu Z, et al. Management of drug-resistant spinal tuberculosis with a combination of surgery and individualised chemotherapy: a retrospective analysis of thirty-five patients. IntOrthop 2012;36:277–83.
2. Multidrug and extensively drug-resistant TB (M/XDR-TB): global report on surveillance and response 2010.
3. Paramasivan CN, Venkataraman P. Drug resistance in tuberculosis in India. Indian J Med Res 2004;120:377–86.
4. Johnson J, Kagal A, Bharadwaj R. Factors associated with drug resistance in pulmonary tuberculosis. Indian J Chest Dis Allied Sci 2003;45:105–9.
5. Sharma SK, Mohan A. Multidrug-resistant tuberculosis. Indian J Med Res. 2004;120:354–76.