1. New strategies for HIV surveillance in resource-constrained settings: an overview
2. World Health OrganizationGlobal Programme on AIDS1989GenevaUnlinked Anonymous Screening for the Public Health Surveillance of HIV Infectionshttp://apps.who.int/iris/bitstream/10665/64004/1/GPA_SFI_89.3.pdf
3. SlutkinGChinJTarantolaDMannJWorld Health Organization1988GenevaSentinel surveillance for HIV infection: a method to monitor HIV infection trends in population groupshttp://apps.who.int/iris/bitstream/10665/61728/1/WHO_GPA_DIR_88.8.pdf
4. Integrating Prevention of Mother-to-Child HIV Transmission Into Routine Antenatal Care
5. World Health Organization and UNAIDSQ&A on HIV/AIDS estimates2007http://data.unaids.org/pub/epislides/2007/071118_qa_methodology_backgrounder_en.pdf