Do cross-check questions improve food frequency questionnaire data?
Nöthlings
U
U
German Institute of Human Nutrition, Department of Epidemiology, Bergholz-Rehbrücke, Germany.
Hoffmann
K
K
Boeing
H
H
D000818:Animals; D002611:Cheese; D004032:Diet / Q000592:standards / Q000706:statistics & numerical data; D004034:Diet Surveys; D004326:Drinking; D005260:Female; D005638:Fruit; D006801:Humans; D008297:Male; D008460:Meat; D012737:Sex Factors; D011795:Surveys and Questionnaires / Q000592:standards*; D014675:Vegetables