Letter: Appropriate developmental screening.
D000488:Allied Health Personnel / Q000193:education / Q000706:statistics & numerical data; D002648:Child; D002657:Child Development; D003467:Cultural Deprivation; D006801:Humans; D007361:Intelligence Tests; D011314:Preventive Health Services; D011386:Projective Techniques; D011581:Psychological Tests; D014481:United States; D014490:United States Office of Economic Opportunity