1. Systematic screening for active tuberculosis: rationale, definitions and key considerations [State of the art series. Active case finding/screening. Number 1 in the series];K Lönnroth;Int J Tuberc Lung Dis,2013
2. World Health Organization (2013) Systematic screening for active tuberculosis: principles and recommendations. 2013. Available: www.who.int/tb/tbscreening/. Accessed 2013 Nov.
3. Ministério da Saúde - Brasil. Boletim Epidemiológico. Especial Tuberculose
4. Ministério da Saúde. Programa Nacional de Controle da Tuberculose 2011. Available: http://portal.saude.gov.br/portal/arquivos/pdf/ap_5_encontro_final_site.pdf. Accessed 2012 Dec.
5. World Health Organization. Global tuberculosis control: Surveillance, planning, financing. WHO Report 2002. Geneva. Available: www.who.int. Accessed 2012 Dec.