最近嘴里总长溃疡，天天吃复合B，朋友建议再服B12。我也正耽心B12 的用量，会不会过量。

来源: DUAN_健康2021 于 2021-10-30 13:39:13 [旧帖] [给我悄悄话] 本文已被阅读：次

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