1. UNODC. Informe mundial sobre las drogas 2012 [Internet]. Nueva York: Naciones Unidas; 2012. [consultado 7 Feb 2014]. Disponible en: http://www.unodc.org/documents/data-and-analysis/WDR2012/WDR_2012_Spanish_web.pdf
2. ONUSIDA. Datos fundamentales sobre el sida [Internet]. 2012. [consultado 5 Oct 2014]. Disponible en: http://search2.unaids.org/custom/search.asp
3. Joint United Nations Programme on HIV/AIDS. Global report UNAIDS report on the global AIDS epidemic: 2012. [Internet]. Geneva: UNAIDS; 2012 [consultado 7 Jul 2014]. Disponible en: http://www.unaids.org/en/media/unaids/contentassets/documents/epidemiology/2012/gr2012/20121120_UNAIDS_Global_Report_2012_en.pdf
4. Consequences of drug abuse and HIV/AIDS in China: Recommendations for integrated care of HIV-infected drug users;Li;AIDS Patient Care STDS,2009
5. Prevalence of hepatitis C infection among intravenous drug users in Shanghai;Tao;World J Gastroenterol,2013