母亲围受孕期服用叶酸营养素补充剂与围产儿死亡率的关系

母亲围受孕期服用叶酸营养素补充剂与围产儿死亡率的关系

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Journal of Peking University (Health Sciences) ›› 2025, Vol. 57 ›› Issue (03) : 473-480. DOI: 10.19723/j.issn.1671-167X.2025.03.010

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