He would say: fluoride is fluoride. 4 ppm vs 0.7 ppm? who cares!

来源: 老忽叔叔 于 2012-10-03 17:37:47 [] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)
回答: The cited Harvard Study 由 也潜水 于 2012-10-03 17:33:46
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