1. World Health Organization (2012) Global tuberculosis report 2012. Geneva pp. 1–282.
2. World Health Organization (2011) Automated real-time nucleic acid amplification technology for rapid and simultaneous detection of tuberculosis and rifampicin resistance: Xpert MTB/RIF system. Geneva
3. World Health Organization (2012) WHO monitoring of Xpert MTB/RIF roll-out.
4. World Health Organization (2011) Rapid implementation of the Xpert MTB/RIF diagnostic test: technical and operational ”How-to„; practical considerations. Geneva
5. Global isoniazid resistance patterns in rifampin-resistant and rifampin-susceptible tuberculosis;SE Smith;Int J Tuberc Lung Dis,2012