Chortatos, A., Haugen, M., Iversen, P.O. and Veierød, M.B. 2014. Dietary changes during first trimester pregnancy for women with nausea and vomiting in the Norwegian Mother and Child Cohort Study. Norsk Epidemiologi. 24, 1-2 (Dec. 2014). DOI:https://doi.org/10.5324/nje.v24i1-2.1816.