Epidemiological studies of blood pressure in Bulgaria.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001158:Arteries; D001794:Blood Pressure; D002031:Bulgaria; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance