National bullying prevention campaign gains momentum.
D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D000374:Aggression; D006801:Humans; D009313:National Health Programs; D011314:Preventive Health Services; D012919:Social Behavior; D040241:Social Marketing; D013334:Students / Q000523:psychology*; D014481:United States