1. UNAIDS (2013) UNAIDS on the Global AIDS Epidemic. Joint United Nations Programme on HIV/AIDS (UNAIDS). Geneva, Switzerland: Joint United Nations Programme on HIV/AIDS (UNAIDS). pp.1–198.
2. UNAIDS (2012) UNAIDS. Together we will end AIDS. Joint United Nations Programme on HIV/AIDS (UNAIDS). Geneva, Swtzerland: Joint United Nations Programme on HIV/AIDS (UNAIDS). pp.1–135.
3. Recent observations on HIV type-1 infection in the genital tract of men and women;RW Coombs;AIDS,2003
4. Sexual transmission of HIV;RA Royce;N Engl J Med,1997
5. Vaginal microbicides and the prevention of HIV transmission;B Cutler;Lancet Infect Dis,2008