Havdahl, A., Farmer, C., Schjølberg, S., Øyen, A., Surén, P., Reichborn‐Kjennerud, T., Magnus, P., Bresnahan, M., Hornig, M., Susser, E., Lipkin, W. I., Lord, C., Stoltenberg, C., Thurm, A., & Bishop, S. (2020). Age of walking and intellectual ability in autism spectrum disorder and other neurodevelopmental disorders: a population‐based study. Journal of Child Psychology and Psychiatry, 62(9), 1070–1078. Portico. https://doi.org/10.1111/jcpp.13369