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2. Contraception and the status of women: what is the link?;Birdsall;Fam Plann Perspect,1987
3. Preventing pregnancy, protecting health: a new look at birth control choices in the United States;Harlap,1991
4. Contraceptive technology 1990-1992;Hatcher,1990
5. Auxiliary midwife precription of oral contraceptives;Rosenfield;Am J Obstet Gynecol,1972