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Projection of Life Expectancy in Ames Based on Ratio of Collagen Fraction of Ames Hearts vs. Wild Type. When the ratios of the collagen fraction (the mean portion of a tissue section which is accounted for by collagen) of Ames dwarf mice to those of wild-type littermates are plotted over time, the resultant curve may be linearly projected to a fair approximation of life expectancy.
