Prevalence of migraine and cluster headache in Swedish men of 18.
D000293:Adolescent; D003027:Cluster Headache / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008881:Migraine Disorders / Q000453:epidemiology*; D012737:Sex Factors; D013548:Sweden; D014653:Vascular Headaches / Q000453:epidemiology*