Validity of a self-administered, semiquantitative food frequency questionnaire.
Porrini
M
M
DISTAM, Division of Human Nutrition, University of Milano, Italy.
Gentile
M G
MG
Fidanza
F
F
D000293:Adolescent; D000328:Adult; D015930:Diet Records; D004435:Eating; D005260:Female; D006801:Humans; D008297:Male; D015596:Nutrition Assessment; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires