Fagerli Rønnaug Aa, Wandel Margareta, Turet Olsen Petra, Ek Johan, Thorstensen Ketil, Brekke Ole-Lars, and Borch-Iohnsen Berit. “Iron Status and Diet at Two Years of Age: A Longitudinal Study of Healthy Norwegian and Immigrant Children”. Food & Nutrition Research (December 1, 1996): 58-63. Accessed March 29, 2024. https://foodandnutritionresearch.net/index.php/fnr/article/view/75.