1World Health.Organization.Tuberculosis. WHO Media Centre March 2006.Geneva, Switzerland; WHO, 2006. Factsheetno.104revised.http: //www.who.int/mediacentre/factsheets/fs104/en/print.html. Accessed March 2007.
2Maher D, Chaulet P, Spinaci S, Harries A D. Treatment of tuberculosis: guidelines for national programmes. 2nd ed. WHO/TB/97.220. Geneva, Switzerland: WHO, 1997.
3World Health Organization/International Union Against Tuberculosis and Lung Disease.Anti-tuberculosis drug resistance in the world. Third global report.The WHO/IUATLD Global Project on Antituberculosis Drug Resistance Surveillance,1999-2002.WHO/HTM/ TB/2004.343.Geneva, Switzerland: WHO, 2004.
4World Health Organization.Laboratory services in tuberculosis control IN]. WHO/TB/98.258.Geneva, Switzerland: WHO, 1999.
9World Health Organization/International Union Against Tuberculosis and Lung Diseases(WHO/IUATLD).Guidelines for surveillance of drug resistance in tuberculosis[S] . Geneva: WHO/TB/WG2003.320: 11[EB/OL]. http://www.who.int/docstore/gtb/publications/drugresistance/tb-2003-320/surveillance-guidelinespdf.pdf.
10World Health Organization/International Union Against Tuberculosis and Lung Diseases (WHO/IUATLD).Anti- Tuberculosis drug resistance in the world. Geneva, 1997:154[EB/OL].http://www.who.int/docstore/gtb/publications/FDF/tb97-229, pdf.