Øverby NC, Johannesen E, Jensen G, Skjævesland A-K, Haugen M. Test-retest reliability and validity of a web-based food-frequency questionnaire for adolescents aged 13-14 to be used in the Norwegian Mother and Child Cohort Study (MoBa). fnr [Internet]. 2014Oct.17 [cited 2024Nov.30];00. Available from: https://foodandnutritionresearch.net/index.php/fnr/article/view/657