Headache and blood pressure in the community.
D000328:Adult; D000368:Aged; D001794:Blood Pressure; D001795:Blood Pressure Determination; D005260:Female; D006261:Headache / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000453:epidemiology; D014852:Wales