Severe and moderate language impairment: evidence for distinctive etiologies.
D000015:Abnormalities, Multiple; D004522:Educational Status; D005260:Female; D006801:Humans; D007361:Intelligence Tests; D007806:Language Disorders / Q000145:classification / Q000175:diagnosis / Q000235:genetics*; D009790:Occupations; D010290:Parents; D011247:Pregnancy; D011248:Pregnancy Complications; D011578:Psycholinguistics; D011581:Psychological Tests; D012306:Risk; D013064:Speech Disorders / Q000175:diagnosis / Q000235:genetics