title: An intercultural study of aggressive behavior on children's playgrounds.
mesh_terms: D000328:Adult; D000374:Aggression; D002648:Child; D002653:Child Behavior Disorders; D002675:Child, Preschool; D003718:Denmark; D005260:Female; D005860:Germany, West; D006801:Humans; D007558:Italy; D008297:Male; D010287:Parent-Child Relations; D010988:Play and Playthings; D011581:Psychological Tests; D011998:Recreation; D012920:Social Behavior Disorders; D013239:Stereotyped Behavior