1. (a) World Health Organisation. Global Tuberculosis Control, WHO Report 2001,
2. (b) World Health Organisation. Geneva, Switzerland, WHO/CDS/TB/2001, 287.
3. (c) World Health Organisation. Tuberculosis Fact Sheet, No. 104. 2000, http://www.who.int/inf-fs/en/fact104.html/.
4. WHO issues another gloomy tuberculosis report
5. Tuberculosis. In: editor. Pathogenesis, protection & control. Washington DC: Am Soc Microbiology; 1994. pp 2-11.