[1]
Øverby , N.C., Johannesen , E., Jensen , G., Skjævesland , A.-K. and Haugen , M. 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. (Oct. 2014). DOI:https://doi.org/10.3402/fnr.v58.23956.