Lead exposure as a risk factor for amyotrophic lateral sclerosis.

Abstract

BACKGROUND The etiology of amyotrophic lateral sclerosis (ALS) likely involves an environmental component. We qualitatively assessed literature on ALS and lead exposure. Problems of study design make case reports and studies of lead in blood or tissues difficult to interpret. Most previous case-control studies found an association of ALS with self-reported… (More)

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