Developmental patterns as a function of ethnicity.
D001741:Black or African American; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D004522:Educational Status; D005006:Ethnicity; D005260:Female; D006801:Humans; D007223:Infant; D007804:Language Development; D008297:Male; D012923:Social Class; D013064:Speech Disorders / Q000175:diagnosis* / Q000628:therapy; D013070:Speech Therapy; D013714:Tennessee; D014039:Toilet Training