The epidemiological enigma of migraine.
D000328:Adult; D000368:Aged; D005260:Female; D006261:Headache / Q000150:complications / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000150:complications / Q000453:epidemiology*; D009325:Nausea / Q000150:complications / Q000453:epidemiology; D013577:Syndrome; D014852:Wales