北京口腔医院这么说“牙周炎的治疗是一个终生治疗的过程,请您永远不要放弃呦！“

来源: 5181 于 2023-08-26 11:25:14 [旧帖] [给我悄悄话] 本文已被阅读：次

美国在牙周炎上每年也投不少经费.

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