Gupta, Anamika, Jitendra Prasad Mathuria, Surya Kumar Singh, Anil Kumar Gulati, and Shampa Anupurba. 2012. “Antitubercular Drug Resistance in Four Healthcare Facilities in North India”. Journal of Health, Population and Nutrition 29 (6):583-92. https://doi.org/10.3329/jhpn.v29i6.9895.