1. Prognostic indicators in hemiparetic cerebral palsy;Cohen;Annals of Neurology,1981
2. The Natural History of Cerebral Palsy;Crothers,1959
3. Cerebral palsy: The whys and hows;Fairhurst;Archives of Disease in Childhood Education and Practice Edition,2012
4. The California Cerebral Palsy Project;Grether;Paediatric and Perinatal Epidemiology,1992
5. The changing panorama of cerebral palsy in Sweden 1954–1970. I. Analysis of the general changes;Hagberg;Acta Paediatrica Scandinavica,1975