医学
宫颈环扎术
产科
早产
妇产科学
子宫颈
随机对照试验
妇科
怀孕
胎龄
妊娠期
外科
内科学
遗传学
癌症
生物
标识
DOI:10.1097/01.aog.0000139265.60529.e3
摘要
The following abstracts of articles from leading journals have been selected on the basis of their importance to the practice of obstetrics and gynecology.
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