发展中的屏障避孕法华西医科大学附属第二医院（６１００４１）韩字研进入２０世纪９０年代以来，生殖健康的知识及技术服务日趋普及，生育年龄夫妇的生育意愿不断倾向于少生育及晚生育，据世界生育调查，约２２％的生育是非意愿的。因此，人工流产率居高不下，这显示了避... Barrier-based contraception in development Second Affiliated Hospital of West China Medical University (610041) Since the 1990s, knowledge and technical services for reproductive health have become more and more popular. The wishes of children of childbearing age tend to favor fewer children and late childbirth. According to World Fertility Survey, about 22% of births are unwilling. Therefore, the high rate of induced abortion, which shows that avoiding ...