Effects of brief separation from parent on young children.
D002652:Child Behavior; D002657:Child Development; D002675:Child, Preschool; D003448:Crying; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D008426:Maternal Deprivation; D009043:Motor Activity; D010287:Parent-Child Relations; D010333:Paternal Deprivation; D010988:Play and Playthings; D011930:Reaction Time; D013997:Time Factors; D014705:Verbal Behavior