论文部分内容阅读
Association of pre-pregnancy body mass index and gestational weight gain with labor stage
【机 构】
：
DepartmentofPerinatalMedicine,BeijingObstetricandGynecologyHospital,CapitalMedicalUniversity.Beijing
【出 处】
：
中华医学杂志英文版
【发表日期】
：
2019年132期
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