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The likelihood of rupture of unruptured intracranial aneurysms that were less than 10 mm in diameter was exceedingly low among patients in group 1 and was substantially higher among those in group 2. The risk of morbidity and mortality related to surgery greatly exceeded the 7.5-year risk of rupture among patients in group 1 with unruptured intracranial aneurysms smaller than 10 mm in diameter.

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The Autism Spectrum Disorders Outcome Study is tracking the educational progress of 67 students, between the ages of 2 and 6 years, whose primary diagnosis for services is an autism spectrum disorder. This article describes the study, how student outcomes have been measured, and how student progress has been reported to service providers and parents. Outcome data has been collected from performance observations, parent and teacher surveys, and standardized assessments. The strength of this data-collection approach is that it uses a variety of sources and multiple methods to monitor student progress. Initial results, based on the first 16 months of the study, have shown that the majority of the children have made significant progress in the areas of social interaction, expressive speech, and use of language concepts. In addition, they have displayed significant decreases in behaviors associated with autism spectrum disorders. This study began in 1998 and will continue at least through August of 2003.