Browsing by Keyword "preschool-children"
Now showing items 1-1 of 1
-
Reproducibility and validity of a food frequency questionnaire designed to assess diet in children aged 4-5 years
Public Library of Science (2016)Background The food frequency questionnaire (FFQ) is the most efficient and cost-effective method to investigate the relationship between usual diet and disease in epidemiologic studies. Although FFQs have been validated ...