中国计划生育学杂志
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列线图预测模型评估二次剖宫产产妇产后出血危险因素
首都医科大学附属北京妇产医院(100026)
Evaluation of a nomogram predictive model for the risk factors of postpartum hemorrhage of women after the second cesarean section
Beijing Maternity Hospital, Capital Medical University, Beijing, 100026