Muzi.com | News : China to tackle rural water contamination:
"Prolonged exposure to excess fluoride causes spinal and dental problems. It has affected 113,402 Chinese villages and sickened 22.3 million people, according to officials."
"Prolonged exposure to excess fluoride causes spinal and dental problems. It has affected 113,402 Chinese villages and sickened 22.3 million people, according to officials."
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