Comparisons between prematurely and maturely born children at three age levels.
D000124:Achievement; D001925:Brain Damage, Chronic; D002648:Child; D002675:Child, Preschool; D004467:Economics; D004521:Educational Measurement; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D007361:Intelligence Tests; D011581:Psychological Tests; D012924:Social Conditions