Medical x-ray visits and examinations during pregnancy. United States 1963.
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008423:Maternal Age; D008722:Methods; D010298:Parity; D011247:Pregnancy; D011295:Prenatal Care; D011859:Radiography; D013902:Radiography, Thoracic; D012111:Residence Characteristics; D013223:Statistics as Topic; D014481:United States; D044465:White People