The prevalence of behavior symptoms in younger elementary school children.
D000184:Acting Out; D000342:Affective Symptoms / Q000453:epidemiology; D000367:Age Factors; D002648:Child; D002653:Child Behavior Disorders / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007087:Illinois; D008297:Male; D012737:Sex Factors