Education, SpecialUnderachievementMainstreaming (Education)United StatesLearning DisordersDisabled ChildrenRehabilitationHealth EducationPatient Education as TopicEducation, Medical, ContinuingDevelopmental DisabilitiesCommunity IntegrationEducational StatusEducation, MedicalEducationEarly Intervention (Education)Disabled PersonsHealth Services Needs and DemandSchoolsPhiladelphiaEducation, ContinuingPoisoningIntellectual DisabilityEducation, DentalEducation, Nursing