Brief Report: On the Concordance Percentages for Autistic Spectrum Disorder of Twins
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- Bohm, H.V. & Stewart, M.G. J Autism Dev Disord (2009) 39: 806. doi:10.1007/s10803-008-0683-2
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In the development of genetic theories of Autistic Spectrum Disorder (ASD) various characteristics of monozygotic (MZ) and dizygotic (DZ) twins are often considered. This paper sets forth a possible refinement in the interpretation of the MZ twin concordance percentages for ASD underlying such genetic theories, and, drawing the consequences from that refinement, a possible early environmental factor in the later development of ASD.