[Psychological changes of the language in children under 6 years of age].
D002648:Child; D002653:Child Behavior Disorders / Q000150:complications*; D002675:Child, Preschool; D006801:Humans; D011578:Psycholinguistics; D013064:Speech Disorders / Q000209:etiology*
Alteraciones psicológicas del lenguaje en el niño menor de seis años.