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The committee concluded that the available evidence was insufficient to determine as association between neurologic disorders and exposure to herbicides used in Vietnam.Neurotoxicologic studies available did not suggest strong biological plausibility for neurologic alterations related to herbicide exposure.Furthermore,given the large uncertainties in the epidemiologic studies reviewed and inadequate control for important confounders,the committee could not quantify a degree of risk for neurologic disorders from herbicide exposure likely to be experienced by Vietnam veterans.Although not part of the neurologic report,the risk of brain tumors was considered in the cancer analysis and the committee concluded that there is limited/suggestive evidence of no association between exposure to herbicides and brain tumors. |
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