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Background
The prevalence of autism spectrum disorders (ASD) varies worldwide from 1.4/10 000 children in the Arabian Peninsula to 185/10 000 children of Asian population. In Europe, the highest prevalence has been observed in Sweden, while the lowest in Croatia (115/10 000 and 2–3/10 000, respectively). There have been no epidemiological studies on the prevalence of ASD in Polish population. The...
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