What is the meaning of non-linear dose-response relationships between blood lead concentrations and IQ?

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Ingvar A Bergdahl. Neurotoxicology. 2006 Dec.

. 2006 Dec;27(6):1125.

doi: 10.1016/j.neuro.2006.09.002. Epub 2006 Sep 15.

No abstract available

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Response to comments on "What is the meaning of non-linear dose-response relationships between blood lead concentration and IQ?".
Bowers TS, Beck BD. Bowers TS, et al. Neurotoxicology. 2006 Dec;27(6):1123. doi: 10.1016/j.neuro.2006.09.008. Epub 2006 Sep 30. Neurotoxicology. 2006. PMID: 17070912 No abstract available.

What is the meaning of non-linear dose-response relationships between blood lead concentrations and IQ?
Bowers TS, Beck BD. Bowers TS, et al. Neurotoxicology. 2006 Jul;27(4):520-4. doi: 10.1016/j.neuro.2006.02.001. Epub 2006 Mar 6. Neurotoxicology. 2006. PMID: 16551479