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המחקר שקישרת אליו מופיע גם הוא בויקיפדיה תחת נזקים למוח Fluoride toxicity [Wikipedia]
A meta analysis conducted on epidemiological studies conducted in China concluded that exposure to "high" levels of fluoride (variously defined) in childhood was associated with a reduction in IQ of about 7 points. The authors of the meta analysis noted that this research is not applicable to the safety of artificial water fluoridation because the adverse effects on IQ was found with fluoride levels that were much higher than typically found in artificially fluoridated water . The meta analysis has been criticized for failing to account for confounding factors. For example, in some of the studies fluoride exposure came from the burning of high fluoride content coal, and used a control group from an area in which wood was used as fuel.16
הקטע המודגש בעברית: כותבי המחקר העירו שהוא אינו ישים לבטיחות של מים מופלרים מלאכותית כי ההשפעה השלילית על ה IQ נמצאה ברמות גבוהות בהרבה מאלו הנמצאות בהם.
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