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| | American Family Physician: Evaluation and Management of the Child with Speech Delay |
 | | A delay in speech development may be a symptom of many disorders, including mental retardation, hearing loss, an expressive language disorder, psychosocial deprivation, autism, elective mutism, receptive aphasia and cerebral palsy. |
 | | Exact figures that would document the prevalence of speech delay in children are difficult to obtain because of confused terminology, differences in diagnostic criteria, unreliability of unconfirmed parental observations, lack of reliable diagnostic procedures and methodologic problems in sampling and data retrieval. |
 | | The bilingual child's comprehension of the two languages is normal for a child of the same age, however, and the child usually becomes proficient in both languages before the age of five years. |
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