[An epidemiological survey on essential hypertension in the Gulou district of East City, Beijing].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002681:China; D004326:Drinking; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D012907:Smoking