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Families engaged in Agricultural Aviation (314) and cooperating sibling families, not occupationally exposed to pesticides (178) provided information, in response to a questionnaire, on their general health status and pregnancy outcomes. These two groups were comparable in age, height, weight, and years of education. Statistical evaluation confirmed the null hypothesis with respect to total pregnancies, number of male or female chldren, spontaneous abortions, and birth defects.
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