title: Severely retarded children in Quebec: prevalence, causes, and care.
mesh_terms: D000293:Adolescent; D000328:Adult; D001724:Birth Weight; D002648:Child; D002656:Child Day Care Centers; D002675:Child, Preschool; D003431:Cross-Cultural Comparison; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D005808:Genes, Recessive; D006801:Humans; D066298:In Vitro Techniques; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000150:complications; D008607:Intellectual Disability / Q000145:classification / Q000453:epidemiology* / Q000235:genetics; D007361:Intelligence Tests; D008297:Male; D001523:Mental Disorders / Q000209:etiology / Q000534:rehabilitation; D011792:Quebec; D012114:Residential Treatment; D006113:United Kingdom; D014481:United States