"Occult" bilingualism in children with school problems.
D000293:Adolescent; D001900:Boston; D002648:Child; D002653:Child Behavior Disorders / Q000209:etiology*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007805:Language Development Disorders / Q000150:complications; D007806:Language Disorders / Q000150:complications*; D007859:Learning Disabilities / Q000209:etiology*; D008297:Male; D012189:Retrospective Studies; D012574:Schools; D013064:Speech Disorders / Q000150:complications