The effect of fluorine on the level of intelligence in children.
January 1994
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Endemic Diseases Bulletin (China)
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Xu Y, Lu C, Zhang X.
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9(2):83-84.
Results of IQ testing: the number of children whose level of intelligence is lower is significantly increased in regions of high fluoride/iodine, regions of high fluoride only, regions of high fluoride/low iodine, against their respective comparative groups. Little difference was detected in the results of high fluoride/iodine regions and regions where only a high amount of fluoride is detected. However, the results in these aforementioned regions in comparison against regions of high f