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Louise, Sandra; Fyfe, Sue; Bebbington, Ami; Bahi-Buisson, Nadia; Anderson, Alison; Pineda, Merce; Percy, Alan; Zeev, Bruria Ben; Wu, Xi Ru; Bao, Xinhua; MacLeod, Patrick; Armstrong, Judith; Leonard, Helen – Research in Autism Spectrum Disorders, 2009
Rett syndrome (RTT) is a rare genetic disorder within the autistic spectrum. This study compared socio-demographic, clinical and genetic characteristics of the international database, InterRett, and the population-based Australian Rett syndrome database (ARSD). It also explored the strengths and limitations of InterRett in comparison with other…
Descriptors: Genetic Disorders, Autism, Genetics, Databases
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Eagle, Rose F.; Romanczyk, Raymond G.; Lenzenweger, Mark F. – Research in Autism Spectrum Disorders, 2010
The heterogeneity found in autism and related disorders (i.e., "autism spectrum disorders") is widely acknowledged. Even within a specific disorder, such as Autistic Disorder, the range in abilities and clinical presentation is broad. The heterogeneity observed has prompted many researchers to propose subtypes beyond the commonly used DSM-IV-TR…
Descriptors: Social Behavior, Autism, Receptive Language, Classification