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...Asia pac j clin nutr short communication validation of a simplified food frequency questionnaire as used in the nutrition and health survey taiwan nahsit for elderly yi chen huang mph meei shyuan lee drph wen harn pan phd mark l wahlqvist md division services preventive medicine institute population sciences national research institutes roc school public defense medical center taipei monash university melbourne victoria australia biomedical academia sinica item sffq combined with open questions about staples was designed nutrient to collect information on participants usual intake previous month we have examined validity this via comparison data multiple hour dietary recall n biomarkers all questionnaires were completed by face interview fasting blood samples taken thirty seven males females randomly se lected from these subjects or recalls within one respectively mean daily frequencies each group calculated hr spearman rank correlation coefficients between obtained ffq ranged men wome...