Show 5 5 10 15 20 50 100 250 Sort by year (new to old) Actions Save this search Download search results Subscribe to news feed Your filters: cql: author exact 6DBF357C-B25E-11E6-B104-2D2FD0AF0289 or (type any "bookEditor issueEditor" and edito... cql: keyword exact "energy" Add to list Journal Article A1 Validity and reproducibility of an adolescent Web-based food frequency questionnaire Christophe Matthys (UGent) , Ilse Pynaert, Willem De Keyzer (UGent) and Stefaan De Henauw (UGent) (2007) JOURNAL OF THE AMERICAN DIETETIC ASSOCIATION. 107(4). p.605-610