1. Preventing pregnancy, protecting health: a new look at birth control in the United States;Alan Guttmacher Institute,1991
2. Preventing pregnancy, protecting health: a new look at birth control in the United States;Alan Guttmacher Institute,1991
3. Priorities for women's health;Centers for Disease Control Prevention,1993
4. Update: impact of the expanded AIDS surveillance case definition for adolescents and adults on case reporting—United States, 1993;Centers for Disease Control Prevention;MMWR,1994