Headache in a military population.
D000293:Adolescent; D000328:Adult; D005260:Female; D006261:Headache / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000453:epidemiology; D008889:Military Personnel; D014481:United States; D014653:Vascular Headaches / Q000453:epidemiology