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We report on the ability of a food frequency questionnaire (FFQ) to estimate the mean nutrient intake at population level for an Italian pediatric population. Three-hundred and twenty-three healthy, fourth grader school children (158 females, 165 males) were enrolled (mean age = 9.3 years, range 8.1-10.6). Data collected from the FFQ was compared with a 24-hour dietary recall that is known to yeald...
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