Validation of a Youth/Adolescent Food Fr
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Helaine R.H. Rockett; Melanie Breitenbach; A.Lindsay Frazier; Jelia Witschi; Ann
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Article
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1997
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Elsevier Science
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English
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## Background: To address limited longitudinal nutrition data on children and adolescents, a self-administered food frequency questionnaire was designed for older children and adolescents. initially, the youth/adolescent questionnaire (yaq) was developed and demonstrated to be reproducible. this st