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The claim that lithium levels in umbilical cord blood are about 20 times higher in Beijing than Changsha is accurate, based on a 2025 study in Environmental Science & Technology. Beijing's levels were 18-21 times higher, likely due to unidentified anthropogenic sources. The study
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The claim that lithium levels in umbilical cord blood are about 20 times higher in Beijing than Changsha is accurate, based on a 2025 study in Environmental Science & Technology. Beijing's levels were 18-21 times higher, likely due to unidentified anthropogenic sources. The study
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