title: Trends and milestones.
authors.forename: K C
authors.initials: KC
authors.lastname: Lakin
authors.forename: D
authors.initials: D
authors.lastname: Braddock
authors.forename: G
authors.initials: G
authors.lastname: Smith
mesh_terms: D006276:Health Facility Size / Q000639:trends*; D006801:Humans; D008607:Intellectual Disability / Q000453:epidemiology* / Q000534:rehabilitation; D012112:Residential Facilities / Q000639:trends*; D014481:United States / Q000453:epidemiology