1. World Health Organization: Global tuberculosis report 2012. [http://apps.who.int/iris/bitstream/10665/75938/1/9789241564502_eng.pdf]
2. Global report: UNAIDS report on the global AIDS epidemic 2013. [http://www.unaids.org/en/media/unaids/contentassets/documents/epidemiology/2013/gr2013/UNAIDS_Global_Report_2013_en.pdf]
3. Time to act. Save a million lives by 2015. Prevent and treat tuberculosis among people living with HIV. [http://www.stoptb.org/assets/documents/resources/publications/acsm/TB_HIV_Brochure_Singles.pdf]
4. Swaminathan S, Ramachandran R, Baskaran G, Paramasivan CN, Ramanathan U, Venkatesan P, Prabhakar R, Datta M: Risk of development of tuberculosis in HIV-infected patients. Int J Tuberc Lung Dis. 2000, 4: 839-844.
5. Kruk A, Bannister W, Podlekareva DN, Chentsova NP, Rakhmanova AG, Horban A, Domingo P, Mocroft A, Lundgren JD, Kirk O, EuroSIDA study group: Tuberculosis among HIV-positive patients across Europe: changes over time and risk factors. AIDS. 2011, 25: 1505-1513. 10.1097/QAD.0b013e328348fafd.