"Between 1870 and 1940, life expectancy in the United States skyrocketed while the percentage of senior citizens age sixty-five and older more than doubled--a phenomenon owed largely to innovations in medicine and public health. At the same time, the Great Depression was a major tipping point for ag...
|Main Author:||Park, Hyung Wook,|
Pittsburgh, Pa. :
University of Pittsburgh Press,
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WT 100 P235o 2016