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. 2009 Oct;4(10):1575–1583. doi: 10.2215/CJN.05581008

Figure 1.

Figure 1.

Scatterplot of the ratio of V (Watson) to S (Dubois) plotted against S. Note that this ratio is substantially higher in men than in women at the same level of S. Note also the positive slope to the scatterplots for both men and women.