Contraceptive efficacy of lactational amenorrhea in urban Chilean women

S. Díaz,R. Aravena,H. Cárdenas, M.E. Casado,P. Miranda, V. Schiappacasse, H.B. Croxatto

Contraception（1991）

引用 0|浏览0

暂无评分

摘要

The contraceptive efficacy of breastfeeding was assessed in 236 healthy urban women who were followed at monthly intervals during the first postpartum year. Proportional hazard models were used to evaluate the influence of time postpartum, menstrual status and breastfeeding pattern upon the risk of pregnancy.

查看译文

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要