Jeff Ryan

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Average Stature Average height is one of the most sensitive indicators of the biological wellbeing of a population (Komlos 1985, Fogel 1986, Steckel 1995). Physical stature is determined by the balance between nutritional intakes and demands made on the organism by the environment during the first 20 years of its life.
Ages of Discord: A Structural-Demographic Analysis of American History
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