PL 94-142 state child counts.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D012048:Correction of Hearing Impairment; D006233:Persons with Disabilities; D004519:Education, Special; D006801:Humans; D007859:Learning Disabilities / Q000534:rehabilitation; D007878:Legislation as Topic; D013064:Speech Disorders / Q000534:rehabilitation; D014481:United States