Defensive reactions to infantile separation anxiety.
D000374:Aggression; D001010:Anxiety, Separation; D002675:Child, Preschool; D003674:Defense Mechanisms; D005106:Exploratory Behavior; D005260:Female; D006801:Humans; D007223:Infant; D007699:Kinesthesis; D008297:Male; D009043:Motor Activity; D012043:Regression, Psychology