Øverby , Nina Cecilie, Elisabeth Johannesen, Grete Jensen, Anne-Kirsti Skjævesland, and Margaretha Haugen. 2014. “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)”. Food & Nutrition Research, October. https://doi.org/10.3402/fnr.v58.23956.