Exposure to environmental toxicants and pathogenesis of amyotrophic lateral sclerosis: state of the art and research perspectives.

Int J Mol Sci · 2013 · PMC3759860 · PMID 23887652

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a strong trendno p-value reported

[ 14 ] revealed for the first time in a large prospective study an increased risk for sALS with formaldehyde exposure, describing a strong trend with increasing years of exposure.

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