Enget Jensen, Torill, Tonje Braaten, Bjarne Koster Jacobsen, Runa Barnung, Anja Olsen, and Guri Skeie. “Adherence to the Healthy Nordic Food Index in the Norwegian Women and Cancer (NOWAC) Cohort”. Food & Nutrition Research 620 (September 12, 2018). Accessed February 19, 2019. https://foodandnutritionresearch.net/index.php/fnr/article/view/1339.