title: Underestimation of the incidence of mental retardation.
authors.forename: R D
authors.initials: RD
authors.lastname: Cunningham
mesh_terms: D002648:Child; D006801:Humans; D015994:Incidence; D008607:Intellectual Disability / Q000175:diagnosis / Q000453:epidemiology*; D015995:Prevalence; D014481:United States / Q000453:epidemiology