Nordhagen, Rannveig, and Kari Kveim Lie. “The Norwegian Mother and Child Cohort Study (MoBa) – Its Birth and Early Development”. Norsk Epidemiologi 24, no. 1-2 (December 22, 2014). Accessed May 7, 2024. https://www.ntnu.no/ojs/index.php/norepid/article/view/1753.