title: Time trends and autism.
authors: G
authors: G
authors: Gal
authors: R
authors: R
authors: Gross
mesh_terms: D000293:Adolescent; D000367:Age Factors; D018912:Arabs; D001321:Autistic Disorder / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D015994:Incidence; D007557:Israel / Q000453:epidemiology; D007585:Jews; D015995:Prevalence; D012042:Registries; D012307:Risk Factors