title: On long-term mortality trends in the United States, 1850-1968.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005006:Ethnicity; D005260:Female; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008017:Life Expectancy; D008297:Male; D008875:Middle Aged; D009026:Mortality / Q000266:history*; D012737:Sex Factors; D013223:Statistics as Topic; D014481:United States