Hägglund, G. and Wagner, P. 2011. Spasticity of the gastrosoleus muscle is related to the development of reduced passive dorsiflexion of the ankle in children with cerebral palsy. Acta Orthopaedica. 82, 6 (Dec. 2011), 744–748. DOI:https://doi.org/10.3109/17453674.2011.618917.