1. Tackling tuberculosis in London’s homeless population;T Burki;Lancet,2010
2. The white plague returns to London—with a vengeance;A. Zumla;Lancet,2011
3. Health Protection Agency (UK). Tuberculosis in the UK: Annual report on tuberculosis surveillance in the UK 2009. Last accessed on: 08/06/2016. Available: http://webarchive.nationalarchives.gov.uk/20140714084352/http://www.hpa.org.uk/Publications/InfectiousDiseases/Tuberculosis/0912TuberculosisintheUK/
4. Trends in tuberculosis-United States, 2011;MMWR,2012
5. Tuberculosis surveillance and monitoring in Europe 2012,2012