Most of those scientists, including Levy, still support water fluoridation as a proved method of controlling tooth decay, especially in populations where oral hygiene is poor.
,括李威在内的大部份科学家仍然支持饮水加氟,尤其是在口腔卫较差的社区,因为这是证明可以控制蛀牙的方法。
Most of those scientists, including Levy, still support water fluoridation as a proved method of controlling tooth decay, especially in populations where oral hygiene is poor.
,括李威在内的大部份科学家仍然支持饮水加氟,尤其是在口腔卫较差的社区,因为这是证明可以控制蛀牙的方法。
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