title: Trends and milestones.
authors.forename: W E
authors.initials: WE
authors.lastname: Kiernan
authors.forename: J
authors.initials: J
authors.lastname: Butterworth
authors.forename: M
authors.initials: M
authors.lastname: McGaughey
mesh_terms: D016832:Employment, Supported / Q000639:trends*; D006801:Humans; D008607:Intellectual Disability / Q000534:rehabilitation*; D012050:Rehabilitation, Vocational / Q000639:trends*; D014481:United States