Fagerli Rønnaug Aa, Wandel Margareta, Turet Olsen Petra, Ek Johan, Thorstensen Ketil, Brekke Ole-Lars, and Borch-Iohnsen Berit. 1996. “Iron Status and Diet at Two Years of Age: A Longitudinal Study of Healthy Norwegian and Immigrant Children”. Food & Nutrition Research, December, 58-63. https://doi.org/10.3402/fnr.v40i0.1747.