1. Global programme on AIDS update: AIDS cases reported to the surveillance, forecasting and impact assessment unit;Global Programme on AIDS,1990
2. World Health Organization revises global estimates of HIV infection;Global Programme on AIDS,1990
3. Estimates of HIV prevalence and projected AIDS cases: Summary of a workshop, October 31–November 1, 1989;MMWR,1990
4. HIV/AIDS Surveillance, September 1990,1990
5. DHHS Pub. No. (PHS) 90-1232,1990