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Mother
Questionnaire - The interview instrument was modeled after the Centers for Disease Control and Prevention’s 1993 mother questionnaire for birth defects risk factor surveillance Food Frequency Questionnaire - The Food frequency questionnaire was developed by TDH for this study population - Questions were based on 100 24-hour dietary recalls among new enrollees in the federal Women, Infants, and Children (WIC) nutrition program in Cameron, El Paso, Hidalgo, and Webb counties - The enrollees in WIC, poor Mexican American women of childbearing age, typified the high risk border population |