Lindén O, Hägglund G, Rodby-Bousquet E, Wagner P. The development of spasticity with age in 4,162 children with cerebral palsy: a register-based prospective cohort study. ActaO [Internet]. 2019 Mar. 25 [cited 2024 May 16];90(3):286-91. Available from: https://actaorthop.org/actao/article/view/519