Levonorgestrel, the most widely used emergency contraceptive pill, is only effective if women take it within three days of having sex. 如果女性在性生活后三天之内,服用使用最广泛的紧急避孕药(EC)-左炔诺孕酮是唯一有效的。
The British Pregnancy Advisory Service ( BPAS ) will encourage women to stock up on the emergency contraceptive over the Christmas period. 英国孕期咨询服务处将鼓励女性在圣诞节期间储备一些紧急避孕药(EC)。
Objective : To study the clinical effectiveness of low dose mifepristone as an emergency contraceptive. 目的:探索低剂量米非司酮作为紧急避孕药(EC)的临床效果。
Migrants have very poor knowledge on emergency contraceptive pill usage. 研究对象对紧急避孕药(EC)正确使用的相关知识了解甚少。
Effect of Advance Provision of Emergency Contraceptive(EC) Pills for Postpartum Women on Unwilling Pregnancy Rate 向产后妇女事先提供紧急避孕药(EC)对意外妊娠率影响的研究