Search Results       Your search for [subject]Life expectancy -- United States -- 20th century returned 1 record.           Changes in the age distribution of mortality over the 20th century. by Cutler, David M.; Cambridge: National Bureau of Economic Research, 2001. Subject: Life expectancy -- United States -- 20th century; Mortality -- United States -- 20th century; Age distribution (Demography) -- United States.          Add to Book Cart Relevance: 29.36%