title: Issues in the enumeration of handicapping conditions in the United States.
authors.forename: L
authors.initials: L
authors.lastname: Martini
authors.forename: R H
authors.initials: RH
authors.lastname: MacTurk
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003625:Data Collection; D006233:Persons with Disabilities; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000453:epidemiology; D008875:Middle Aged; D009017:Morbidity; D014481:United States