title: Survey of the intelligence of cleft-lip and cleft-palate children in Ontario.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002971:Cleft Lip; D002972:Cleft Palate; D000013:Congenital Abnormalities; D005260:Female; D006311:Hearing Disorders; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D008297:Male; D009864:Ontario