title: Brief report: on the concordance percentages for Autistic Spectrum Disorder of twins.
abstract: 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.
authors.affiliation: Department of Physics and Astronomy, Wayne State University, Detroit, MI 48202, USA. hbohm@wayne.edu
authors.forename: Henry V
authors.initials: HV
authors.lastname: Bohm
authors.forename: Melbourne G
authors.initials: MG
authors.lastname: Stewart
mesh_terms: D001321:Autistic Disorder / Q000235:genetics*; D002648:Child; D004200:Diseases in Twins / Q000235:genetics*; D006801:Humans; D011569:Psychiatric Status Rating Scales; D012307:Risk Factors; D014429:Twins, Dizygotic / Q000235:genetics; D014430:Twins, Monozygotic / Q000235:genetics