Résultats de la recherche - 2 results
Fat-soluble vitamin intake from the consumption of food, fortified food and supplements: design and methods of the Belgian VITADEK study.
and obstetric clinics. Participants were asked to complete a self-administered online food frequency questionnaire (FFQ) or to answer the questionnaire by phone if online participation was not possible. ...
The added value of food frequency questionnaire (FFQ) information to estimate the usual food intake based on repeated 24-hour recalls
recall episodically consumed foods FFQ food consumption survey food frequnecy questionnaire never-consumers Spade statistical modeling methods usual intake Abstract: Background Statistical methods to model ...