[Infographics] WHO: Gần 50% dân số thế giới mắc bệnh về răng miệng
Tổ chức Y tế Thế giới (WHO) cho biết gần 50% người dân trên thế giới mắc các bệnh về răng miệng như sâu răng, sưng nướu, ung thư khoang miệng...
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