title: Sources of error in dietary surveys.
mesh_terms: D000293:Adolescent; D000328:Adult; D001205:Ascorbic Acid / Q000032:analysis; D002136:Calcium, Dietary / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D004034:Diet Surveys; D004041:Dietary Fats / Q000032:analysis; D004044:Dietary Proteins / Q000032:analysis; D005069:Evaluation Studies as Topic; D005227:Fatty Acids / Q000032:analysis; D005504:Food Analysis / Q000592:standards; D006801:Humans; D007501:Iron / Q000032:analysis; D007558:Italy; D008297:Male; D008433:Mathematics; D008568:Memory; D008660:Metabolism; D008875:Middle Aged; D009749:Nutrition Surveys; D009747:Nutritional Physiological Phenomena; D013997:Time Factors; D014801:Vitamin A / Q000032:analysis
chemical_list: D002136:Calcium, Dietary; D004041:Dietary Fats; D004044:Dietary Proteins; D005227:Fatty Acids; D014801:Vitamin A; D007501:Iron; D001205:Ascorbic Acid