Kiapekos, N. et al. 2019. Primary surgery to prevent hip dislocation in children with cerebral palsy in Sweden: a minimum 5-year follow-up by the national surveillance program (CPUP). Acta Orthopaedica. 90, 5 (Jun. 2019), 495–500. DOI:https://doi.org/10.1080/17453674.2019.1627116.