Lindén, Olof, Gunnar Hägglund, Elisabet Rodby-Bousquet, and Philippe Wagner. “The Development of Spasticity With Age in 4,162 Children With Cerebral Palsy: A Register-Based Prospective Cohort Study”. Acta Orthopaedica 90, no. 3 (March 25, 2019): 286–291. Accessed May 21, 2024. https://actaorthop.org/actao/article/view/519.