Pediatric headaches: a one year retrospective analysis.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006261:Headache / Q000145:classification / Q000453:epidemiology*; D006801:Humans; D007087:Illinois; D008297:Male; D008881:Migraine Disorders / Q000453:epidemiology; D012189:Retrospective Studies; D014653:Vascular Headaches / Q000453:epidemiology