title: Incidence of normal pineal gland calcification in skull roentgenograms of black and white Americans.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D044383:Black People; D001927:Brain Diseases / Q000453:epidemiology; D002114:Calcinosis / Q000453:epidemiology*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009820:Ohio; D010870:Pineal Gland / Q000000981:diagnostic imaging; D011859:Radiography; D044465:White People; D001741:Black or African American