[KongchangAI]
Unverified85% confidenceSolutionTime unknown

叶酸补充方案标准路径:备孕前3个月开始→选400μg药品级单一叶酸→有高危因素者就医评估是否需4mg→孕12周后可转含铁DHA的孕妇复合营养→全程每日固定时间服用

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