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Saemundsen, Evald; Juliusson, H.; Hjaltested, S.; Gunnarsdottir, T.; Halldorsdottir, T.; Hreidarsson, S.; Magnusson, P. – Journal of Intellectual Disability Research, 2010
Background: Research on the prevalence of autism in Iceland has indicated that one possible explanation of fewer autism cases in older age groups was due to an underestimation of autism in individuals with intellectual disabilities (IDs). The present study systematically searched for autism cases in the adult population of individuals with severe…
Descriptors: Incidence, Mental Retardation, Autism, Rating Scales